Home / 28,999.10-43,543.20-15,877.10

Finding the Fourth Proportional to 28,999.10, 43,543.20 and 15,877.10

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Solution

The fourth proportional to 28,999.10, 43,543.20 and 15,877.10 is: 23,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,999.10 : 43,543.20 = 15,877.10 : x
  2. Step 2: Convert to fraction form
    28,999.10/43,543.20 = 15,877.10/x
  3. Step 3: Cross multiply
    28,999.10x = 43,543.20 × 15,877.10
  4. Step 4: Simplify right side
    28,999.10x = 691,339,740.72
  5. Step 5: Solve for x
    x = 691,339,740.72/28,999.10
  6. Step 6: Final answer
    x = 23,840.04

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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.