Home / 31,390.13-43,318.68-17,242.98

Finding the Fourth Proportional to 31,390.13, 43,318.68 and 17,242.98

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Solution

The fourth proportional to 31,390.13, 43,318.68 and 17,242.98 is: 23,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,390.13 : 43,318.68 = 17,242.98 : x
  2. Step 2: Convert to fraction form
    31,390.13/43,318.68 = 17,242.98/x
  3. Step 3: Cross multiply
    31,390.13x = 43,318.68 × 17,242.98
  4. Step 4: Simplify right side
    31,390.13x = 746,943,002.75
  5. Step 5: Solve for x
    x = 746,943,002.75/31,390.13
  6. Step 6: Final answer
    x = 23,795.47

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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.