Home / 31,438.77-43,385.11-17,291.31

Finding the Fourth Proportional to 31,438.77, 43,385.11 and 17,291.31

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Solution

The fourth proportional to 31,438.77, 43,385.11 and 17,291.31 is: 23,861.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.77 : 43,385.11 = 17,291.31 : x
  2. Step 2: Convert to fraction form
    31,438.77/43,385.11 = 17,291.31/x
  3. Step 3: Cross multiply
    31,438.77x = 43,385.11 × 17,291.31
  4. Step 4: Simplify right side
    31,438.77x = 750,185,386.39
  5. Step 5: Solve for x
    x = 750,185,386.39/31,438.77
  6. Step 6: Final answer
    x = 23,861.79

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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.