Home / 31,486.68-43,451.10-17,340.84

Finding the Fourth Proportional to 31,486.68, 43,451.10 and 17,340.84

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Solution

The fourth proportional to 31,486.68, 43,451.10 and 17,340.84 is: 23,930.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.68 : 43,451.10 = 17,340.84 : x
  2. Step 2: Convert to fraction form
    31,486.68/43,451.10 = 17,340.84/x
  3. Step 3: Cross multiply
    31,486.68x = 43,451.10 × 17,340.84
  4. Step 4: Simplify right side
    31,486.68x = 753,478,572.92
  5. Step 5: Solve for x
    x = 753,478,572.92/31,486.68
  6. Step 6: Final answer
    x = 23,930.07

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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.