Home / 27,702.46-38,229.47-15,127.21

Finding the Fourth Proportional to 27,702.46, 38,229.47 and 15,127.21

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Solution

The fourth proportional to 27,702.46, 38,229.47 and 15,127.21 is: 20,875.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,702.46 : 38,229.47 = 15,127.21 : x
  2. Step 2: Convert to fraction form
    27,702.46/38,229.47 = 15,127.21/x
  3. Step 3: Cross multiply
    27,702.46x = 38,229.47 × 15,127.21
  4. Step 4: Simplify right side
    27,702.46x = 578,305,220.88
  5. Step 5: Solve for x
    x = 578,305,220.88/27,702.46
  6. Step 6: Final answer
    x = 20,875.59

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Double 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.