Home / 28,191.02-38,884.86-18,132.18

Finding the Fourth Proportional to 28,191.02, 38,884.86 and 18,132.18

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Solution

The fourth proportional to 28,191.02, 38,884.86 and 18,132.18 is: 25,010.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.02 : 38,884.86 = 18,132.18 : x
  2. Step 2: Convert to fraction form
    28,191.02/38,884.86 = 18,132.18/x
  3. Step 3: Cross multiply
    28,191.02x = 38,884.86 × 18,132.18
  4. Step 4: Simplify right side
    28,191.02x = 705,067,280.79
  5. Step 5: Solve for x
    x = 705,067,280.79/28,191.02
  6. Step 6: Final answer
    x = 25,010.35

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Double scale
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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.