Home / 31,282.38-43,169.70-17,135.28

Finding the Fourth Proportional to 31,282.38, 43,169.70 and 17,135.28

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Solution

The fourth proportional to 31,282.38, 43,169.70 and 17,135.28 is: 23,646.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,282.38 : 43,169.70 = 17,135.28 : x
  2. Step 2: Convert to fraction form
    31,282.38/43,169.70 = 17,135.28/x
  3. Step 3: Cross multiply
    31,282.38x = 43,169.70 × 17,135.28
  4. Step 4: Simplify right side
    31,282.38x = 739,724,681.17
  5. Step 5: Solve for x
    x = 739,724,681.17/31,282.38
  6. Step 6: Final answer
    x = 23,646.69

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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.