Home / 19,972.80-29,934.90-8,867.70

Finding the Fourth Proportional to 19,972.80, 29,934.90 and 8,867.70

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Solution

The fourth proportional to 19,972.80, 29,934.90 and 8,867.70 is: 13,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.80 : 29,934.90 = 8,867.70 : x
  2. Step 2: Convert to fraction form
    19,972.80/29,934.90 = 8,867.70/x
  3. Step 3: Cross multiply
    19,972.80x = 29,934.90 × 8,867.70
  4. Step 4: Simplify right side
    19,972.80x = 265,453,712.73
  5. Step 5: Solve for x
    x = 265,453,712.73/19,972.80
  6. Step 6: Final answer
    x = 13,290.76

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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.