Home / 31,428.20-43,371.68-17,281.04

Finding the Fourth Proportional to 31,428.20, 43,371.68 and 17,281.04

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Solution

The fourth proportional to 31,428.20, 43,371.68 and 17,281.04 is: 23,848.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.20 : 43,371.68 = 17,281.04 : x
  2. Step 2: Convert to fraction form
    31,428.20/43,371.68 = 17,281.04/x
  3. Step 3: Cross multiply
    31,428.20x = 43,371.68 × 17,281.04
  4. Step 4: Simplify right side
    31,428.20x = 749,507,433.68
  5. Step 5: Solve for x
    x = 749,507,433.68/31,428.20
  6. Step 6: Final answer
    x = 23,848.25

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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.