Home / 37,991.12-56,979.96-10,291.28

Finding the Fourth Proportional to 37,991.12, 56,979.96 and 10,291.28

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Solution

The fourth proportional to 37,991.12, 56,979.96 and 10,291.28 is: 15,435.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,991.12 : 56,979.96 = 10,291.28 : x
  2. Step 2: Convert to fraction form
    37,991.12/56,979.96 = 10,291.28/x
  3. Step 3: Cross multiply
    37,991.12x = 56,979.96 × 10,291.28
  4. Step 4: Simplify right side
    37,991.12x = 586,396,722.75
  5. Step 5: Solve for x
    x = 586,396,722.75/37,991.12
  6. Step 6: Final answer
    x = 15,435.10

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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.