Home / 20,772.68-28,625.10-14,793.80

Finding the Fourth Proportional to 20,772.68, 28,625.10 and 14,793.80

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Solution

The fourth proportional to 20,772.68, 28,625.10 and 14,793.80 is: 20,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.68 : 28,625.10 = 14,793.80 : x
  2. Step 2: Convert to fraction form
    20,772.68/28,625.10 = 14,793.80/x
  3. Step 3: Cross multiply
    20,772.68x = 28,625.10 × 14,793.80
  4. Step 4: Simplify right side
    20,772.68x = 423,474,004.38
  5. Step 5: Solve for x
    x = 423,474,004.38/20,772.68
  6. Step 6: Final answer
    x = 20,386.10

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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.