Home / 29,325.12-43,987.31-7,138.52

Finding the Fourth Proportional to 29,325.12, 43,987.31 and 7,138.52

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Solution

The fourth proportional to 29,325.12, 43,987.31 and 7,138.52 is: 10,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,325.12 : 43,987.31 = 7,138.52 : x
  2. Step 2: Convert to fraction form
    29,325.12/43,987.31 = 7,138.52/x
  3. Step 3: Cross multiply
    29,325.12x = 43,987.31 × 7,138.52
  4. Step 4: Simplify right side
    29,325.12x = 314,004,036.55
  5. Step 5: Solve for x
    x = 314,004,036.55/29,325.12
  6. Step 6: Final answer
    x = 10,707.68

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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.