Home / 26,397.12-36,432.72-15,787.92

Finding the Fourth Proportional to 26,397.12, 36,432.72 and 15,787.92

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Solution

The fourth proportional to 26,397.12, 36,432.72 and 15,787.92 is: 21,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,397.12 : 36,432.72 = 15,787.92 : x
  2. Step 2: Convert to fraction form
    26,397.12/36,432.72 = 15,787.92/x
  3. Step 3: Cross multiply
    26,397.12x = 36,432.72 × 15,787.92
  4. Step 4: Simplify right side
    26,397.12x = 575,196,868.74
  5. Step 5: Solve for x
    x = 575,196,868.74/26,397.12
  6. Step 6: Final answer
    x = 21,790.14

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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.