Home / 31,011.68-42,803.96-17,590.92

Finding the Fourth Proportional to 31,011.68, 42,803.96 and 17,590.92

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Solution

The fourth proportional to 31,011.68, 42,803.96 and 17,590.92 is: 24,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,011.68 : 42,803.96 = 17,590.92 : x
  2. Step 2: Convert to fraction form
    31,011.68/42,803.96 = 17,590.92/x
  3. Step 3: Cross multiply
    31,011.68x = 42,803.96 × 17,590.92
  4. Step 4: Simplify right side
    31,011.68x = 752,960,948.09
  5. Step 5: Solve for x
    x = 752,960,948.09/31,011.68
  6. Step 6: Final answer
    x = 24,279.92

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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.