Home / 42,420.20-63,630.30-29,954.30

Finding the Fourth Proportional to 42,420.20, 63,630.30 and 29,954.30

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Solution

The fourth proportional to 42,420.20, 63,630.30 and 29,954.30 is: 44,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,420.20 : 63,630.30 = 29,954.30 : x
  2. Step 2: Convert to fraction form
    42,420.20/63,630.30 = 29,954.30/x
  3. Step 3: Cross multiply
    42,420.20x = 63,630.30 × 29,954.30
  4. Step 4: Simplify right side
    42,420.20x = 1,906,001,095.29
  5. Step 5: Solve for x
    x = 1,906,001,095.29/42,420.20
  6. Step 6: Final answer
    x = 44,931.45

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Double scale
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Similar ratio
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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.