Home / 27,937.20-38,553.12-15,361.92

Finding the Fourth Proportional to 27,937.20, 38,553.12 and 15,361.92

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Solution

The fourth proportional to 27,937.20, 38,553.12 and 15,361.92 is: 21,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,937.20 : 38,553.12 = 15,361.92 : x
  2. Step 2: Convert to fraction form
    27,937.20/38,553.12 = 15,361.92/x
  3. Step 3: Cross multiply
    27,937.20x = 38,553.12 × 15,361.92
  4. Step 4: Simplify right side
    27,937.20x = 592,249,945.19
  5. Step 5: Solve for x
    x = 592,249,945.19/27,937.20
  6. Step 6: Final answer
    x = 21,199.33

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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.