Home / 20,159.61-30,229.05-9,056.78

Finding the Fourth Proportional to 20,159.61, 30,229.05 and 9,056.78

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Solution

The fourth proportional to 20,159.61, 30,229.05 and 9,056.78 is: 13,580.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.61 : 30,229.05 = 9,056.78 : x
  2. Step 2: Convert to fraction form
    20,159.61/30,229.05 = 9,056.78/x
  3. Step 3: Cross multiply
    20,159.61x = 30,229.05 × 9,056.78
  4. Step 4: Simplify right side
    20,159.61x = 273,777,855.46
  5. Step 5: Solve for x
    x = 273,777,855.46/20,159.61
  6. Step 6: Final answer
    x = 13,580.51

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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.