Home / 27,557.73-38,030.06-20,646.65

Finding the Fourth Proportional to 27,557.73, 38,030.06 and 20,646.65

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Solution

The fourth proportional to 27,557.73, 38,030.06 and 20,646.65 is: 28,492.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,557.73 : 38,030.06 = 20,646.65 : x
  2. Step 2: Convert to fraction form
    27,557.73/38,030.06 = 20,646.65/x
  3. Step 3: Cross multiply
    27,557.73x = 38,030.06 × 20,646.65
  4. Step 4: Simplify right side
    27,557.73x = 785,193,338.30
  5. Step 5: Solve for x
    x = 785,193,338.30/27,557.73
  6. Step 6: Final answer
    x = 28,492.67

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Half scale
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Double scale
Find fourth proportional to 27,558.73, 38,031.44 and 20,647.65
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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.