Home / 42,430.60-63,621.90-16,136.20

Finding the Fourth Proportional to 42,430.60, 63,621.90 and 16,136.20

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Solution

The fourth proportional to 42,430.60, 63,621.90 and 16,136.20 is: 24,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,430.60 : 63,621.90 = 16,136.20 : x
  2. Step 2: Convert to fraction form
    42,430.60/63,621.90 = 16,136.20/x
  3. Step 3: Cross multiply
    42,430.60x = 63,621.90 × 16,136.20
  4. Step 4: Simplify right side
    42,430.60x = 1,026,615,702.78
  5. Step 5: Solve for x
    x = 1,026,615,702.78/42,430.60
  6. Step 6: Final answer
    x = 24,195.17

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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.