Home / 20,934.38-28,897.02-13,863.08

Finding the Fourth Proportional to 20,934.38, 28,897.02 and 13,863.08

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Solution

The fourth proportional to 20,934.38, 28,897.02 and 13,863.08 is: 19,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.38 : 28,897.02 = 13,863.08 : x
  2. Step 2: Convert to fraction form
    20,934.38/28,897.02 = 13,863.08/x
  3. Step 3: Cross multiply
    20,934.38x = 28,897.02 × 13,863.08
  4. Step 4: Simplify right side
    20,934.38x = 400,601,555.54
  5. Step 5: Solve for x
    x = 400,601,555.54/20,934.38
  6. Step 6: Final answer
    x = 19,136.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.