Home / 20,060.71-27,683.91-11,108.79

Finding the Fourth Proportional to 20,060.71, 27,683.91 and 11,108.79

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Solution

The fourth proportional to 20,060.71, 27,683.91 and 11,108.79 is: 15,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.71 : 27,683.91 = 11,108.79 : x
  2. Step 2: Convert to fraction form
    20,060.71/27,683.91 = 11,108.79/x
  3. Step 3: Cross multiply
    20,060.71x = 27,683.91 × 11,108.79
  4. Step 4: Simplify right side
    20,060.71x = 307,534,742.57
  5. Step 5: Solve for x
    x = 307,534,742.57/20,060.71
  6. Step 6: Final answer
    x = 15,330.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.