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Finding the Fourth Proportional to 40,385.29, 60,587.70 and 12,683.29

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Solution

The fourth proportional to 40,385.29, 60,587.70 and 12,683.29 is: 19,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.29 : 60,587.70 = 12,683.29 : x
  2. Step 2: Convert to fraction form
    40,385.29/60,587.70 = 12,683.29/x
  3. Step 3: Cross multiply
    40,385.29x = 60,587.70 × 12,683.29
  4. Step 4: Simplify right side
    40,385.29x = 768,451,369.53
  5. Step 5: Solve for x
    x = 768,451,369.53/40,385.29
  6. Step 6: Final answer
    x = 19,028.00

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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.