Home / 42,390.28-63,585.45-14,688.28

Finding the Fourth Proportional to 42,390.28, 63,585.45 and 14,688.28

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Solution

The fourth proportional to 42,390.28, 63,585.45 and 14,688.28 is: 22,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,390.28 : 63,585.45 = 14,688.28 : x
  2. Step 2: Convert to fraction form
    42,390.28/63,585.45 = 14,688.28/x
  3. Step 3: Cross multiply
    42,390.28x = 63,585.45 × 14,688.28
  4. Step 4: Simplify right side
    42,390.28x = 933,960,893.53
  5. Step 5: Solve for x
    x = 933,960,893.53/42,390.28
  6. Step 6: Final answer
    x = 22,032.43

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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.