Home / 22,785.60-31,438.24-21,200.04

Finding the Fourth Proportional to 22,785.60, 31,438.24 and 21,200.04

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Solution

The fourth proportional to 22,785.60, 31,438.24 and 21,200.04 is: 29,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,785.60 : 31,438.24 = 21,200.04 : x
  2. Step 2: Convert to fraction form
    22,785.60/31,438.24 = 21,200.04/x
  3. Step 3: Cross multiply
    22,785.60x = 31,438.24 × 21,200.04
  4. Step 4: Simplify right side
    22,785.60x = 666,491,945.53
  5. Step 5: Solve for x
    x = 666,491,945.53/22,785.60
  6. Step 6: Final answer
    x = 29,250.58

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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.