Home / 22,576.55-31,153.68-13,620.78

Finding the Fourth Proportional to 22,576.55, 31,153.68 and 13,620.78

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Solution

The fourth proportional to 22,576.55, 31,153.68 and 13,620.78 is: 18,795.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,576.55 : 31,153.68 = 13,620.78 : x
  2. Step 2: Convert to fraction form
    22,576.55/31,153.68 = 13,620.78/x
  3. Step 3: Cross multiply
    22,576.55x = 31,153.68 × 13,620.78
  4. Step 4: Simplify right side
    22,576.55x = 424,337,421.47
  5. Step 5: Solve for x
    x = 424,337,421.47/22,576.55
  6. Step 6: Final answer
    x = 18,795.50

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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.