Home / 23,139.68-34,705.14-11,281.56

Finding the Fourth Proportional to 23,139.68, 34,705.14 and 11,281.56

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Solution

The fourth proportional to 23,139.68, 34,705.14 and 11,281.56 is: 16,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139.68 : 34,705.14 = 11,281.56 : x
  2. Step 2: Convert to fraction form
    23,139.68/34,705.14 = 11,281.56/x
  3. Step 3: Cross multiply
    23,139.68x = 34,705.14 × 11,281.56
  4. Step 4: Simplify right side
    23,139.68x = 391,528,119.22
  5. Step 5: Solve for x
    x = 391,528,119.22/23,139.68
  6. Step 6: Final answer
    x = 16,920.20

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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.