Home / 38,780.82-58,182.69-12,484.92

Finding the Fourth Proportional to 38,780.82, 58,182.69 and 12,484.92

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Solution

The fourth proportional to 38,780.82, 58,182.69 and 12,484.92 is: 18,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.82 : 58,182.69 = 12,484.92 : x
  2. Step 2: Convert to fraction form
    38,780.82/58,182.69 = 12,484.92/x
  3. Step 3: Cross multiply
    38,780.82x = 58,182.69 × 12,484.92
  4. Step 4: Simplify right side
    38,780.82x = 726,406,230.03
  5. Step 5: Solve for x
    x = 726,406,230.03/38,780.82
  6. Step 6: Final answer
    x = 18,731.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.