Home / 28,034.11-38,686.78-15,287.26

Finding the Fourth Proportional to 28,034.11, 38,686.78 and 15,287.26

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Solution

The fourth proportional to 28,034.11, 38,686.78 and 15,287.26 is: 21,096.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.11 : 38,686.78 = 15,287.26 : x
  2. Step 2: Convert to fraction form
    28,034.11/38,686.78 = 15,287.26/x
  3. Step 3: Cross multiply
    28,034.11x = 38,686.78 × 15,287.26
  4. Step 4: Simplify right side
    28,034.11x = 591,414,864.42
  5. Step 5: Solve for x
    x = 591,414,864.42/28,034.11
  6. Step 6: Final answer
    x = 21,096.26

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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.