Home / 20,020.10-29,989.13-11,236.59

Finding the Fourth Proportional to 20,020.10, 29,989.13 and 11,236.59

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Solution

The fourth proportional to 20,020.10, 29,989.13 and 11,236.59 is: 16,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.10 : 29,989.13 = 11,236.59 : x
  2. Step 2: Convert to fraction form
    20,020.10/29,989.13 = 11,236.59/x
  3. Step 3: Cross multiply
    20,020.10x = 29,989.13 × 11,236.59
  4. Step 4: Simplify right side
    20,020.10x = 336,975,502.08
  5. Step 5: Solve for x
    x = 336,975,502.08/20,020.10
  6. Step 6: Final answer
    x = 16,831.86

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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.