Home / 20,553.20-28,337.60-16,772.52

Finding the Fourth Proportional to 20,553.20, 28,337.60 and 16,772.52

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Solution

The fourth proportional to 20,553.20, 28,337.60 and 16,772.52 is: 23,125.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.20 : 28,337.60 = 16,772.52 : x
  2. Step 2: Convert to fraction form
    20,553.20/28,337.60 = 16,772.52/x
  3. Step 3: Cross multiply
    20,553.20x = 28,337.60 × 16,772.52
  4. Step 4: Simplify right side
    20,553.20x = 475,292,878.89
  5. Step 5: Solve for x
    x = 475,292,878.89/20,553.20
  6. Step 6: Final answer
    x = 23,125.01

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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.