Home / 19,956.97-29,890.14-15,478.69

Finding the Fourth Proportional to 19,956.97, 29,890.14 and 15,478.69

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Solution

The fourth proportional to 19,956.97, 29,890.14 and 15,478.69 is: 23,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.97 : 29,890.14 = 15,478.69 : x
  2. Step 2: Convert to fraction form
    19,956.97/29,890.14 = 15,478.69/x
  3. Step 3: Cross multiply
    19,956.97x = 29,890.14 × 15,478.69
  4. Step 4: Simplify right side
    19,956.97x = 462,660,211.12
  5. Step 5: Solve for x
    x = 462,660,211.12/19,956.97
  6. Step 6: Final answer
    x = 23,182.89

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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.