Home / 31,112.32-42,934.08-17,685.04

Finding the Fourth Proportional to 31,112.32, 42,934.08 and 17,685.04

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Solution

The fourth proportional to 31,112.32, 42,934.08 and 17,685.04 is: 24,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,112.32 : 42,934.08 = 17,685.04 : x
  2. Step 2: Convert to fraction form
    31,112.32/42,934.08 = 17,685.04/x
  3. Step 3: Cross multiply
    31,112.32x = 42,934.08 × 17,685.04
  4. Step 4: Simplify right side
    31,112.32x = 759,290,922.16
  5. Step 5: Solve for x
    x = 759,290,922.16/31,112.32
  6. Step 6: Final answer
    x = 24,404.83

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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.