Home / 31,385.72-43,312.24-17,045.48

Finding the Fourth Proportional to 31,385.72, 43,312.24 and 17,045.48

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Solution

The fourth proportional to 31,385.72, 43,312.24 and 17,045.48 is: 23,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.72 : 43,312.24 = 17,045.48 : x
  2. Step 2: Convert to fraction form
    31,385.72/43,312.24 = 17,045.48/x
  3. Step 3: Cross multiply
    31,385.72x = 43,312.24 × 17,045.48
  4. Step 4: Simplify right side
    31,385.72x = 738,277,920.68
  5. Step 5: Solve for x
    x = 738,277,920.68/31,385.72
  6. Step 6: Final answer
    x = 23,522.73

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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.