Home / 31,385.67-43,314.35-17,238.66

Finding the Fourth Proportional to 31,385.67, 43,314.35 and 17,238.66

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Solution

The fourth proportional to 31,385.67, 43,314.35 and 17,238.66 is: 23,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,385.67 : 43,314.35 = 17,238.66 : x
  2. Step 2: Convert to fraction form
    31,385.67/43,314.35 = 17,238.66/x
  3. Step 3: Cross multiply
    31,385.67x = 43,314.35 × 17,238.66
  4. Step 4: Simplify right side
    31,385.67x = 746,681,266.58
  5. Step 5: Solve for x
    x = 746,681,266.58/31,385.67
  6. Step 6: Final answer
    x = 23,790.52

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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.