Home / 22,154.67-30,576.33-12,723.30

Finding the Fourth Proportional to 22,154.67, 30,576.33 and 12,723.30

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Solution

The fourth proportional to 22,154.67, 30,576.33 and 12,723.30 is: 17,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,154.67 : 30,576.33 = 12,723.30 : x
  2. Step 2: Convert to fraction form
    22,154.67/30,576.33 = 12,723.30/x
  3. Step 3: Cross multiply
    22,154.67x = 30,576.33 × 12,723.30
  4. Step 4: Simplify right side
    22,154.67x = 389,031,819.49
  5. Step 5: Solve for x
    x = 389,031,819.49/22,154.67
  6. Step 6: Final answer
    x = 17,559.81

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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.