Home / 28,862.13-43,306.89-19,991.10

Finding the Fourth Proportional to 28,862.13, 43,306.89 and 19,991.10

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Solution

The fourth proportional to 28,862.13, 43,306.89 and 19,991.10 is: 29,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.13 : 43,306.89 = 19,991.10 : x
  2. Step 2: Convert to fraction form
    28,862.13/43,306.89 = 19,991.10/x
  3. Step 3: Cross multiply
    28,862.13x = 43,306.89 × 19,991.10
  4. Step 4: Simplify right side
    28,862.13x = 865,752,368.68
  5. Step 5: Solve for x
    x = 865,752,368.68/28,862.13
  6. Step 6: Final answer
    x = 29,996.14

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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.