Home / 22,890-31,566.60-14,938.32

Finding the Fourth Proportional to 22,890, 31,566.60 and 14,938.32

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Solution

The fourth proportional to 22,890, 31,566.60 and 14,938.32 is: 20,600.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,890 : 31,566.60 = 14,938.32 : x
  2. Step 2: Convert to fraction form
    22,890/31,566.60 = 14,938.32/x
  3. Step 3: Cross multiply
    22,890x = 31,566.60 × 14,938.32
  4. Step 4: Simplify right side
    22,890x = 471,551,972.11
  5. Step 5: Solve for x
    x = 471,551,972.11/22,890
  6. Step 6: Final answer
    x = 20,600.79

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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.