Home / 19,934.50-29,920.20-10,080.70

Finding the Fourth Proportional to 19,934.50, 29,920.20 and 10,080.70

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Solution

The fourth proportional to 19,934.50, 29,920.20 and 10,080.70 is: 15,130.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,934.50 : 29,920.20 = 10,080.70 : x
  2. Step 2: Convert to fraction form
    19,934.50/29,920.20 = 10,080.70/x
  3. Step 3: Cross multiply
    19,934.50x = 29,920.20 × 10,080.70
  4. Step 4: Simplify right side
    19,934.50x = 301,616,560.14
  5. Step 5: Solve for x
    x = 301,616,560.14/19,934.50
  6. Step 6: Final answer
    x = 15,130.38

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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.