Home / 28,253.92-42,380.88-10,719.58

Finding the Fourth Proportional to 28,253.92, 42,380.88 and 10,719.58

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Solution

The fourth proportional to 28,253.92, 42,380.88 and 10,719.58 is: 16,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.92 : 42,380.88 = 10,719.58 : x
  2. Step 2: Convert to fraction form
    28,253.92/42,380.88 = 10,719.58/x
  3. Step 3: Cross multiply
    28,253.92x = 42,380.88 × 10,719.58
  4. Step 4: Simplify right side
    28,253.92x = 454,305,233.63
  5. Step 5: Solve for x
    x = 454,305,233.63/28,253.92
  6. Step 6: Final answer
    x = 16,079.37

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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.