Home / 31,442.62-43,395.06-28,785.28

Finding the Fourth Proportional to 31,442.62, 43,395.06 and 28,785.28

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Solution

The fourth proportional to 31,442.62, 43,395.06 and 28,785.28 is: 39,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.62 : 43,395.06 = 28,785.28 : x
  2. Step 2: Convert to fraction form
    31,442.62/43,395.06 = 28,785.28/x
  3. Step 3: Cross multiply
    31,442.62x = 43,395.06 × 28,785.28
  4. Step 4: Simplify right side
    31,442.62x = 1,249,138,952.72
  5. Step 5: Solve for x
    x = 1,249,138,952.72/31,442.62
  6. Step 6: Final answer
    x = 39,727.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.