Home / 31,385.60-43,312.01-17,045.49

Finding the Fourth Proportional to 31,385.60, 43,312.01 and 17,045.49

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Solution

The fourth proportional to 31,385.60, 43,312.01 and 17,045.49 is: 23,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.60 : 43,312.01 = 17,045.49 : x
  2. Step 2: Convert to fraction form
    31,385.60/43,312.01 = 17,045.49/x
  3. Step 3: Cross multiply
    31,385.60x = 43,312.01 × 17,045.49
  4. Step 4: Simplify right side
    31,385.60x = 738,274,348.11
  5. Step 5: Solve for x
    x = 738,274,348.11/31,385.60
  6. Step 6: Final answer
    x = 23,522.71

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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.