Home / 28,152.75-42,229.13-10,618.48

Finding the Fourth Proportional to 28,152.75, 42,229.13 and 10,618.48

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Solution

The fourth proportional to 28,152.75, 42,229.13 and 10,618.48 is: 15,927.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.75 : 42,229.13 = 10,618.48 : x
  2. Step 2: Convert to fraction form
    28,152.75/42,229.13 = 10,618.48/x
  3. Step 3: Cross multiply
    28,152.75x = 42,229.13 × 10,618.48
  4. Step 4: Simplify right side
    28,152.75x = 448,409,013.66
  5. Step 5: Solve for x
    x = 448,409,013.66/28,152.75
  6. Step 6: Final answer
    x = 15,927.72

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Similar ratio
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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.