Home / 21,966.67-30,167.78-18,423.73

Finding the Fourth Proportional to 21,966.67, 30,167.78 and 18,423.73

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Solution

The fourth proportional to 21,966.67, 30,167.78 and 18,423.73 is: 25,302.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.67 : 30,167.78 = 18,423.73 : x
  2. Step 2: Convert to fraction form
    21,966.67/30,167.78 = 18,423.73/x
  3. Step 3: Cross multiply
    21,966.67x = 30,167.78 × 18,423.73
  4. Step 4: Simplify right side
    21,966.67x = 555,803,033.42
  5. Step 5: Solve for x
    x = 555,803,033.42/21,966.67
  6. Step 6: Final answer
    x = 25,302.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.