Home / 20,099.06-30,142.42-13,898.92

Finding the Fourth Proportional to 20,099.06, 30,142.42 and 13,898.92

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Solution

The fourth proportional to 20,099.06, 30,142.42 and 13,898.92 is: 20,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,099.06 : 30,142.42 = 13,898.92 : x
  2. Step 2: Convert to fraction form
    20,099.06/30,142.42 = 13,898.92/x
  3. Step 3: Cross multiply
    20,099.06x = 30,142.42 × 13,898.92
  4. Step 4: Simplify right side
    20,099.06x = 418,946,909.15
  5. Step 5: Solve for x
    x = 418,946,909.15/20,099.06
  6. Step 6: Final answer
    x = 20,844.10

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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.