Home / 19,603.69-27,034.76-15,120.34

Finding the Fourth Proportional to 19,603.69, 27,034.76 and 15,120.34

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Solution

The fourth proportional to 19,603.69, 27,034.76 and 15,120.34 is: 20,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.69 : 27,034.76 = 15,120.34 : x
  2. Step 2: Convert to fraction form
    19,603.69/27,034.76 = 15,120.34/x
  3. Step 3: Cross multiply
    19,603.69x = 27,034.76 × 15,120.34
  4. Step 4: Simplify right side
    19,603.69x = 408,774,733.23
  5. Step 5: Solve for x
    x = 408,774,733.23/19,603.69
  6. Step 6: Final answer
    x = 20,851.93

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Half scale
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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.