Home / 28,971.24-43,442.16-14,157.96

Finding the Fourth Proportional to 28,971.24, 43,442.16 and 14,157.96

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Solution

The fourth proportional to 28,971.24, 43,442.16 and 14,157.96 is: 21,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.24 : 43,442.16 = 14,157.96 : x
  2. Step 2: Convert to fraction form
    28,971.24/43,442.16 = 14,157.96/x
  3. Step 3: Cross multiply
    28,971.24x = 43,442.16 × 14,157.96
  4. Step 4: Simplify right side
    28,971.24x = 615,052,363.59
  5. Step 5: Solve for x
    x = 615,052,363.59/28,971.24
  6. Step 6: Final answer
    x = 21,229.76

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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.