Home / 18,821.04-28,224.87-13,540.14

Finding the Fourth Proportional to 18,821.04, 28,224.87 and 13,540.14

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Solution

The fourth proportional to 18,821.04, 28,224.87 and 13,540.14 is: 20,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.04 : 28,224.87 = 13,540.14 : x
  2. Step 2: Convert to fraction form
    18,821.04/28,224.87 = 13,540.14/x
  3. Step 3: Cross multiply
    18,821.04x = 28,224.87 × 13,540.14
  4. Step 4: Simplify right side
    18,821.04x = 382,168,691.28
  5. Step 5: Solve for x
    x = 382,168,691.28/18,821.04
  6. Step 6: Final answer
    x = 20,305.40

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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.