Home / 22,938.75-31,652.73-13,380.66

Finding the Fourth Proportional to 22,938.75, 31,652.73 and 13,380.66

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Solution

The fourth proportional to 22,938.75, 31,652.73 and 13,380.66 is: 18,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,938.75 : 31,652.73 = 13,380.66 : x
  2. Step 2: Convert to fraction form
    22,938.75/31,652.73 = 13,380.66/x
  3. Step 3: Cross multiply
    22,938.75x = 31,652.73 × 13,380.66
  4. Step 4: Simplify right side
    22,938.75x = 423,534,418.20
  5. Step 5: Solve for x
    x = 423,534,418.20/22,938.75
  6. Step 6: Final answer
    x = 18,463.71

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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.