Home / 31,393.12-43,329.98-17,972.13

Finding the Fourth Proportional to 31,393.12, 43,329.98 and 17,972.13

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Solution

The fourth proportional to 31,393.12, 43,329.98 and 17,972.13 is: 24,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393.12 : 43,329.98 = 17,972.13 : x
  2. Step 2: Convert to fraction form
    31,393.12/43,329.98 = 17,972.13/x
  3. Step 3: Cross multiply
    31,393.12x = 43,329.98 × 17,972.13
  4. Step 4: Simplify right side
    31,393.12x = 778,732,033.46
  5. Step 5: Solve for x
    x = 778,732,033.46/31,393.12
  6. Step 6: Final answer
    x = 24,805.82

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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.