Home / 28,867.20-43,308.24-9,146.40

Finding the Fourth Proportional to 28,867.20, 43,308.24 and 9,146.40

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Solution

The fourth proportional to 28,867.20, 43,308.24 and 9,146.40 is: 13,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.20 : 43,308.24 = 9,146.40 : x
  2. Step 2: Convert to fraction form
    28,867.20/43,308.24 = 9,146.40/x
  3. Step 3: Cross multiply
    28,867.20x = 43,308.24 × 9,146.40
  4. Step 4: Simplify right side
    28,867.20x = 396,114,486.34
  5. Step 5: Solve for x
    x = 396,114,486.34/28,867.20
  6. Step 6: Final answer
    x = 13,721.96

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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.