Home / 15,520.46-23,280.91-4,427.15

Finding the Fourth Proportional to 15,520.46, 23,280.91 and 4,427.15

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Solution

The fourth proportional to 15,520.46, 23,280.91 and 4,427.15 is: 6,640.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.46 : 23,280.91 = 4,427.15 : x
  2. Step 2: Convert to fraction form
    15,520.46/23,280.91 = 4,427.15/x
  3. Step 3: Cross multiply
    15,520.46x = 23,280.91 × 4,427.15
  4. Step 4: Simplify right side
    15,520.46x = 103,067,953.23
  5. Step 5: Solve for x
    x = 103,067,953.23/15,520.46
  6. Step 6: Final answer
    x = 6,640.78

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Half scale
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Double scale
Find fourth proportional to 15,521.46, 23,282.41 and 4,428.15
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.