Home / 28,098.64-42,115.56-10,557.28

Finding the Fourth Proportional to 28,098.64, 42,115.56 and 10,557.28

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Solution

The fourth proportional to 28,098.64, 42,115.56 and 10,557.28 is: 15,823.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098.64 : 42,115.56 = 10,557.28 : x
  2. Step 2: Convert to fraction form
    28,098.64/42,115.56 = 10,557.28/x
  3. Step 3: Cross multiply
    28,098.64x = 42,115.56 × 10,557.28
  4. Step 4: Simplify right side
    28,098.64x = 444,625,759.28
  5. Step 5: Solve for x
    x = 444,625,759.28/28,098.64
  6. Step 6: Final answer
    x = 15,823.75

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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.