Home / 22,217.60-30,660.65-13,265.89

Finding the Fourth Proportional to 22,217.60, 30,660.65 and 13,265.89

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Solution

The fourth proportional to 22,217.60, 30,660.65 and 13,265.89 is: 18,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.60 : 30,660.65 = 13,265.89 : x
  2. Step 2: Convert to fraction form
    22,217.60/30,660.65 = 13,265.89/x
  3. Step 3: Cross multiply
    22,217.60x = 30,660.65 × 13,265.89
  4. Step 4: Simplify right side
    22,217.60x = 406,740,810.23
  5. Step 5: Solve for x
    x = 406,740,810.23/22,217.60
  6. Step 6: Final answer
    x = 18,307.14

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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.