Home / 20,579.52-28,373.22-16,798.80

Finding the Fourth Proportional to 20,579.52, 28,373.22 and 16,798.80

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Solution

The fourth proportional to 20,579.52, 28,373.22 and 16,798.80 is: 23,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.52 : 28,373.22 = 16,798.80 : x
  2. Step 2: Convert to fraction form
    20,579.52/28,373.22 = 16,798.80/x
  3. Step 3: Cross multiply
    20,579.52x = 28,373.22 × 16,798.80
  4. Step 4: Simplify right side
    20,579.52x = 476,636,048.14
  5. Step 5: Solve for x
    x = 476,636,048.14/20,579.52
  6. Step 6: Final answer
    x = 23,160.70

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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.