Home / 20,937.06-28,891.98-11,984.13

Finding the Fourth Proportional to 20,937.06, 28,891.98 and 11,984.13

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Solution

The fourth proportional to 20,937.06, 28,891.98 and 11,984.13 is: 16,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,937.06 : 28,891.98 = 11,984.13 : x
  2. Step 2: Convert to fraction form
    20,937.06/28,891.98 = 11,984.13/x
  3. Step 3: Cross multiply
    20,937.06x = 28,891.98 × 11,984.13
  4. Step 4: Simplify right side
    20,937.06x = 346,245,244.28
  5. Step 5: Solve for x
    x = 346,245,244.28/20,937.06
  6. Step 6: Final answer
    x = 16,537.43

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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.