Home / 28,083.38-38,755.09-15,508.13

Finding the Fourth Proportional to 28,083.38, 38,755.09 and 15,508.13

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Solution

The fourth proportional to 28,083.38, 38,755.09 and 15,508.13 is: 21,401.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.38 : 38,755.09 = 15,508.13 : x
  2. Step 2: Convert to fraction form
    28,083.38/38,755.09 = 15,508.13/x
  3. Step 3: Cross multiply
    28,083.38x = 38,755.09 × 15,508.13
  4. Step 4: Simplify right side
    28,083.38x = 601,018,799.49
  5. Step 5: Solve for x
    x = 601,018,799.49/28,083.38
  6. Step 6: Final answer
    x = 21,401.23

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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.