Home / 36,211.10-54,316.65-15,431.90

Finding the Fourth Proportional to 36,211.10, 54,316.65 and 15,431.90

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Solution

The fourth proportional to 36,211.10, 54,316.65 and 15,431.90 is: 23,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,211.10 : 54,316.65 = 15,431.90 : x
  2. Step 2: Convert to fraction form
    36,211.10/54,316.65 = 15,431.90/x
  3. Step 3: Cross multiply
    36,211.10x = 54,316.65 × 15,431.90
  4. Step 4: Simplify right side
    36,211.10x = 838,209,111.14
  5. Step 5: Solve for x
    x = 838,209,111.14/36,211.10
  6. Step 6: Final answer
    x = 23,147.85

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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.