Home / 20,502.30-30,753.45-10,134.30

Finding the Fourth Proportional to 20,502.30, 30,753.45 and 10,134.30

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Solution

The fourth proportional to 20,502.30, 30,753.45 and 10,134.30 is: 15,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502.30 : 30,753.45 = 10,134.30 : x
  2. Step 2: Convert to fraction form
    20,502.30/30,753.45 = 10,134.30/x
  3. Step 3: Cross multiply
    20,502.30x = 30,753.45 × 10,134.30
  4. Step 4: Simplify right side
    20,502.30x = 311,664,688.34
  5. Step 5: Solve for x
    x = 311,664,688.34/20,502.30
  6. Step 6: Final answer
    x = 15,201.45

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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.