Home / 22,065.24-30,454.08-13,117.68

Finding the Fourth Proportional to 22,065.24, 30,454.08 and 13,117.68

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Solution

The fourth proportional to 22,065.24, 30,454.08 and 13,117.68 is: 18,104.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,065.24 : 30,454.08 = 13,117.68 : x
  2. Step 2: Convert to fraction form
    22,065.24/30,454.08 = 13,117.68/x
  3. Step 3: Cross multiply
    22,065.24x = 30,454.08 × 13,117.68
  4. Step 4: Simplify right side
    22,065.24x = 399,486,876.13
  5. Step 5: Solve for x
    x = 399,486,876.13/22,065.24
  6. Step 6: Final answer
    x = 18,104.81

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1.5x scale

Why These Related Problems?

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