Home / 22,961.00-31,687.60-15,291.12

Finding the Fourth Proportional to 22,961.00, 31,687.60 and 15,291.12

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Solution

The fourth proportional to 22,961.00, 31,687.60 and 15,291.12 is: 21,102.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,961.00 : 31,687.60 = 15,291.12 : x
  2. Step 2: Convert to fraction form
    22,961.00/31,687.60 = 15,291.12/x
  3. Step 3: Cross multiply
    22,961.00x = 31,687.60 × 15,291.12
  4. Step 4: Simplify right side
    22,961.00x = 484,539,003.38
  5. Step 5: Solve for x
    x = 484,539,003.38/22,961.00
  6. Step 6: Final answer
    x = 21,102.69

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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.