Home / 18,972.16-28,418.56-15,254.28

Finding the Fourth Proportional to 18,972.16, 28,418.56 and 15,254.28

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Solution

The fourth proportional to 18,972.16, 28,418.56 and 15,254.28 is: 22,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.16 : 28,418.56 = 15,254.28 : x
  2. Step 2: Convert to fraction form
    18,972.16/28,418.56 = 15,254.28/x
  3. Step 3: Cross multiply
    18,972.16x = 28,418.56 × 15,254.28
  4. Step 4: Simplify right side
    18,972.16x = 433,504,671.44
  5. Step 5: Solve for x
    x = 433,504,671.44/18,972.16
  6. Step 6: Final answer
    x = 22,849.52

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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.