Home / 29,278.16-43,920.20-8,218.26

Finding the Fourth Proportional to 29,278.16, 43,920.20 and 8,218.26

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Solution

The fourth proportional to 29,278.16, 43,920.20 and 8,218.26 is: 12,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,278.16 : 43,920.20 = 8,218.26 : x
  2. Step 2: Convert to fraction form
    29,278.16/43,920.20 = 8,218.26/x
  3. Step 3: Cross multiply
    29,278.16x = 43,920.20 × 8,218.26
  4. Step 4: Simplify right side
    29,278.16x = 360,947,620.28
  5. Step 5: Solve for x
    x = 360,947,620.28/29,278.16
  6. Step 6: Final answer
    x = 12,328.22

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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.