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Finding the Fourth Proportional to 20,061.40, 30,092.10 and 14,812.60

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Solution

The fourth proportional to 20,061.40, 30,092.10 and 14,812.60 is: 22,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.40 : 30,092.10 = 14,812.60 : x
  2. Step 2: Convert to fraction form
    20,061.40/30,092.10 = 14,812.60/x
  3. Step 3: Cross multiply
    20,061.40x = 30,092.10 × 14,812.60
  4. Step 4: Simplify right side
    20,061.40x = 445,742,240.46
  5. Step 5: Solve for x
    x = 445,742,240.46/20,061.40
  6. Step 6: Final answer
    x = 22,218.90

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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.