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Finding the Fourth Proportional to 40,569.70, 60,857.70 and 14,280.34

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Solution

The fourth proportional to 40,569.70, 60,857.70 and 14,280.34 is: 21,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,569.70 : 60,857.70 = 14,280.34 : x
  2. Step 2: Convert to fraction form
    40,569.70/60,857.70 = 14,280.34/x
  3. Step 3: Cross multiply
    40,569.70x = 60,857.70 × 14,280.34
  4. Step 4: Simplify right side
    40,569.70x = 869,068,647.62
  5. Step 5: Solve for x
    x = 869,068,647.62/40,569.70
  6. Step 6: Final answer
    x = 21,421.62

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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.