Home / 22,217.92-30,661.10-13,266.21

Finding the Fourth Proportional to 22,217.92, 30,661.10 and 13,266.21

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Solution

The fourth proportional to 22,217.92, 30,661.10 and 13,266.21 is: 18,307.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.92 : 30,661.10 = 13,266.21 : x
  2. Step 2: Convert to fraction form
    22,217.92/30,661.10 = 13,266.21/x
  3. Step 3: Cross multiply
    22,217.92x = 30,661.10 × 13,266.21
  4. Step 4: Simplify right side
    22,217.92x = 406,756,371.79
  5. Step 5: Solve for x
    x = 406,756,371.79/22,217.92
  6. Step 6: Final answer
    x = 18,307.58

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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.