Home / 20,753.35-28,635.86-11,800.28

Finding the Fourth Proportional to 20,753.35, 28,635.86 and 11,800.28

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Solution

The fourth proportional to 20,753.35, 28,635.86 and 11,800.28 is: 16,282.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.35 : 28,635.86 = 11,800.28 : x
  2. Step 2: Convert to fraction form
    20,753.35/28,635.86 = 11,800.28/x
  3. Step 3: Cross multiply
    20,753.35x = 28,635.86 × 11,800.28
  4. Step 4: Simplify right side
    20,753.35x = 337,911,267.13
  5. Step 5: Solve for x
    x = 337,911,267.13/20,753.35
  6. Step 6: Final answer
    x = 16,282.25

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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.