Home / 28,034.06-42,065.31-15,551.78

Finding the Fourth Proportional to 28,034.06, 42,065.31 and 15,551.78

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Solution

The fourth proportional to 28,034.06, 42,065.31 and 15,551.78 is: 23,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,034.06 : 42,065.31 = 15,551.78 : x
  2. Step 2: Convert to fraction form
    28,034.06/42,065.31 = 15,551.78/x
  3. Step 3: Cross multiply
    28,034.06x = 42,065.31 × 15,551.78
  4. Step 4: Simplify right side
    28,034.06x = 654,190,446.75
  5. Step 5: Solve for x
    x = 654,190,446.75/28,034.06
  6. Step 6: Final answer
    x = 23,335.56

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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.