Home / 40,293.12-60,406.38-17,787.78

Finding the Fourth Proportional to 40,293.12, 60,406.38 and 17,787.78

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Solution

The fourth proportional to 40,293.12, 60,406.38 and 17,787.78 is: 26,666.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,293.12 : 60,406.38 = 17,787.78 : x
  2. Step 2: Convert to fraction form
    40,293.12/60,406.38 = 17,787.78/x
  3. Step 3: Cross multiply
    40,293.12x = 60,406.38 × 17,787.78
  4. Step 4: Simplify right side
    40,293.12x = 1,074,495,398.04
  5. Step 5: Solve for x
    x = 1,074,495,398.04/40,293.12
  6. Step 6: Final answer
    x = 26,666.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.