Home / 20,454.67-30,688.49-7,306.75

Finding the Fourth Proportional to 20,454.67, 30,688.49 and 7,306.75

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Solution

The fourth proportional to 20,454.67, 30,688.49 and 7,306.75 is: 10,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.67 : 30,688.49 = 7,306.75 : x
  2. Step 2: Convert to fraction form
    20,454.67/30,688.49 = 7,306.75/x
  3. Step 3: Cross multiply
    20,454.67x = 30,688.49 × 7,306.75
  4. Step 4: Simplify right side
    20,454.67x = 224,233,124.31
  5. Step 5: Solve for x
    x = 224,233,124.31/20,454.67
  6. Step 6: Final answer
    x = 10,962.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.