Home / 29,979.31-44,961.13-8,913.68

Finding the Fourth Proportional to 29,979.31, 44,961.13 and 8,913.68

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Solution

The fourth proportional to 29,979.31, 44,961.13 and 8,913.68 is: 13,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,979.31 : 44,961.13 = 8,913.68 : x
  2. Step 2: Convert to fraction form
    29,979.31/44,961.13 = 8,913.68/x
  3. Step 3: Cross multiply
    29,979.31x = 44,961.13 × 8,913.68
  4. Step 4: Simplify right side
    29,979.31x = 400,769,080.20
  5. Step 5: Solve for x
    x = 400,769,080.20/29,979.31
  6. Step 6: Final answer
    x = 13,368.19

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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.