Home / 31,374.68-43,288.62-18,617.27

Finding the Fourth Proportional to 31,374.68, 43,288.62 and 18,617.27

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Solution

The fourth proportional to 31,374.68, 43,288.62 and 18,617.27 is: 25,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,374.68 : 43,288.62 = 18,617.27 : x
  2. Step 2: Convert to fraction form
    31,374.68/43,288.62 = 18,617.27/x
  3. Step 3: Cross multiply
    31,374.68x = 43,288.62 × 18,617.27
  4. Step 4: Simplify right side
    31,374.68x = 805,915,926.47
  5. Step 5: Solve for x
    x = 805,915,926.47/31,374.68
  6. Step 6: Final answer
    x = 25,686.83

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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.