Home / 42,432.56-63,551.88-20,261.46

Finding the Fourth Proportional to 42,432.56, 63,551.88 and 20,261.46

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Solution

The fourth proportional to 42,432.56, 63,551.88 and 20,261.46 is: 30,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,432.56 : 63,551.88 = 20,261.46 : x
  2. Step 2: Convert to fraction form
    42,432.56/63,551.88 = 20,261.46/x
  3. Step 3: Cross multiply
    42,432.56x = 63,551.88 × 20,261.46
  4. Step 4: Simplify right side
    42,432.56x = 1,287,653,874.54
  5. Step 5: Solve for x
    x = 1,287,653,874.54/42,432.56
  6. Step 6: Final answer
    x = 30,345.89

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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.