Home / 22,227.12-30,672.16-13,031.44

Finding the Fourth Proportional to 22,227.12, 30,672.16 and 13,031.44

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Solution

The fourth proportional to 22,227.12, 30,672.16 and 13,031.44 is: 17,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,227.12 : 30,672.16 = 13,031.44 : x
  2. Step 2: Convert to fraction form
    22,227.12/30,672.16 = 13,031.44/x
  3. Step 3: Cross multiply
    22,227.12x = 30,672.16 × 13,031.44
  4. Step 4: Simplify right side
    22,227.12x = 399,702,412.71
  5. Step 5: Solve for x
    x = 399,702,412.71/22,227.12
  6. Step 6: Final answer
    x = 17,982.65

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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.