Home / 31,122.64-42,949.05-17,693.90

Finding the Fourth Proportional to 31,122.64, 42,949.05 and 17,693.90

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Solution

The fourth proportional to 31,122.64, 42,949.05 and 17,693.90 is: 24,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.64 : 42,949.05 = 17,693.90 : x
  2. Step 2: Convert to fraction form
    31,122.64/42,949.05 = 17,693.90/x
  3. Step 3: Cross multiply
    31,122.64x = 42,949.05 × 17,693.90
  4. Step 4: Simplify right side
    31,122.64x = 759,936,107.33
  5. Step 5: Solve for x
    x = 759,936,107.33/31,122.64
  6. Step 6: Final answer
    x = 24,417.47

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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.