Home / 22,947.05-34,422.28-8,918.57

Finding the Fourth Proportional to 22,947.05, 34,422.28 and 8,918.57

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Solution

The fourth proportional to 22,947.05, 34,422.28 and 8,918.57 is: 13,378.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.05 : 34,422.28 = 8,918.57 : x
  2. Step 2: Convert to fraction form
    22,947.05/34,422.28 = 8,918.57/x
  3. Step 3: Cross multiply
    22,947.05x = 34,422.28 × 8,918.57
  4. Step 4: Simplify right side
    22,947.05x = 306,997,319.33
  5. Step 5: Solve for x
    x = 306,997,319.33/22,947.05
  6. Step 6: Final answer
    x = 13,378.51

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1.5x scale

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.