Home / 42,410.10-63,615.15-21,630.90

Finding the Fourth Proportional to 42,410.10, 63,615.15 and 21,630.90

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Solution

The fourth proportional to 42,410.10, 63,615.15 and 21,630.90 is: 32,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,410.10 : 63,615.15 = 21,630.90 : x
  2. Step 2: Convert to fraction form
    42,410.10/63,615.15 = 21,630.90/x
  3. Step 3: Cross multiply
    42,410.10x = 63,615.15 × 21,630.90
  4. Step 4: Simplify right side
    42,410.10x = 1,376,052,948.14
  5. Step 5: Solve for x
    x = 1,376,052,948.14/42,410.10
  6. Step 6: Final answer
    x = 32,446.35

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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.