Home / 31,486.29-43,449.10-17,339.10

Finding the Fourth Proportional to 31,486.29, 43,449.10 and 17,339.10

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Solution

The fourth proportional to 31,486.29, 43,449.10 and 17,339.10 is: 23,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.29 : 43,449.10 = 17,339.10 : x
  2. Step 2: Convert to fraction form
    31,486.29/43,449.10 = 17,339.10/x
  3. Step 3: Cross multiply
    31,486.29x = 43,449.10 × 17,339.10
  4. Step 4: Simplify right side
    31,486.29x = 753,368,289.81
  5. Step 5: Solve for x
    x = 753,368,289.81/31,486.29
  6. Step 6: Final answer
    x = 23,926.87

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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.