Home / 31,985.12-44,139.30-18,564.14

Finding the Fourth Proportional to 31,985.12, 44,139.30 and 18,564.14

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Solution

The fourth proportional to 31,985.12, 44,139.30 and 18,564.14 is: 25,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.12 : 44,139.30 = 18,564.14 : x
  2. Step 2: Convert to fraction form
    31,985.12/44,139.30 = 18,564.14/x
  3. Step 3: Cross multiply
    31,985.12x = 44,139.30 × 18,564.14
  4. Step 4: Simplify right side
    31,985.12x = 819,408,144.70
  5. Step 5: Solve for x
    x = 819,408,144.70/31,985.12
  6. Step 6: Final answer
    x = 25,618.42

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