Home / 22,720.48-34,081.12-8,680.64

Finding the Fourth Proportional to 22,720.48, 34,081.12 and 8,680.64

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Solution

The fourth proportional to 22,720.48, 34,081.12 and 8,680.64 is: 13,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,720.48 : 34,081.12 = 8,680.64 : x
  2. Step 2: Convert to fraction form
    22,720.48/34,081.12 = 8,680.64/x
  3. Step 3: Cross multiply
    22,720.48x = 34,081.12 × 8,680.64
  4. Step 4: Simplify right side
    22,720.48x = 295,845,933.52
  5. Step 5: Solve for x
    x = 295,845,933.52/22,720.48
  6. Step 6: Final answer
    x = 13,021.11

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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.