Home / 21,072.03-29,079.45-11,641.20

Finding the Fourth Proportional to 21,072.03, 29,079.45 and 11,641.20

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Solution

The fourth proportional to 21,072.03, 29,079.45 and 11,641.20 is: 16,064.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,072.03 : 29,079.45 = 11,641.20 : x
  2. Step 2: Convert to fraction form
    21,072.03/29,079.45 = 11,641.20/x
  3. Step 3: Cross multiply
    21,072.03x = 29,079.45 × 11,641.20
  4. Step 4: Simplify right side
    21,072.03x = 338,519,693.34
  5. Step 5: Solve for x
    x = 338,519,693.34/21,072.03
  6. Step 6: Final answer
    x = 16,064.88

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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.