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Finding the Fourth Proportional to 36,552.10, 54,828.15 and 21,000.10

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Solution

The fourth proportional to 36,552.10, 54,828.15 and 21,000.10 is: 31,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,552.10 : 54,828.15 = 21,000.10 : x
  2. Step 2: Convert to fraction form
    36,552.10/54,828.15 = 21,000.10/x
  3. Step 3: Cross multiply
    36,552.10x = 54,828.15 × 21,000.10
  4. Step 4: Simplify right side
    36,552.10x = 1,151,396,632.82
  5. Step 5: Solve for x
    x = 1,151,396,632.82/36,552.10
  6. Step 6: Final answer
    x = 31,500.15

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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.