Home / 31,388.95-43,306.18-17,775.13

Finding the Fourth Proportional to 31,388.95, 43,306.18 and 17,775.13

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Solution

The fourth proportional to 31,388.95, 43,306.18 and 17,775.13 is: 24,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.95 : 43,306.18 = 17,775.13 : x
  2. Step 2: Convert to fraction form
    31,388.95/43,306.18 = 17,775.13/x
  3. Step 3: Cross multiply
    31,388.95x = 43,306.18 × 17,775.13
  4. Step 4: Simplify right side
    31,388.95x = 769,772,979.30
  5. Step 5: Solve for x
    x = 769,772,979.30/31,388.95
  6. Step 6: Final answer
    x = 24,523.69

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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.