Home / 31,568.28-43,564.14-18,140.52

Finding the Fourth Proportional to 31,568.28, 43,564.14 and 18,140.52

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Solution

The fourth proportional to 31,568.28, 43,564.14 and 18,140.52 is: 25,033.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,568.28 : 43,564.14 = 18,140.52 : x
  2. Step 2: Convert to fraction form
    31,568.28/43,564.14 = 18,140.52/x
  3. Step 3: Cross multiply
    31,568.28x = 43,564.14 × 18,140.52
  4. Step 4: Simplify right side
    31,568.28x = 790,276,152.95
  5. Step 5: Solve for x
    x = 790,276,152.95/31,568.28
  6. Step 6: Final answer
    x = 25,033.87

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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.