Home / 27,557.69-38,030.04-15,620.76

Finding the Fourth Proportional to 27,557.69, 38,030.04 and 15,620.76

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Solution

The fourth proportional to 27,557.69, 38,030.04 and 15,620.76 is: 21,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,557.69 : 38,030.04 = 15,620.76 : x
  2. Step 2: Convert to fraction form
    27,557.69/38,030.04 = 15,620.76/x
  3. Step 3: Cross multiply
    27,557.69x = 38,030.04 × 15,620.76
  4. Step 4: Simplify right side
    27,557.69x = 594,058,127.63
  5. Step 5: Solve for x
    x = 594,058,127.63/27,557.69
  6. Step 6: Final answer
    x = 21,556.90

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Half scale
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Double scale
Find fourth proportional to 27,558.69, 38,031.42 and 15,621.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.