Home / 20,363.30-28,101.02-11,410.75

Finding the Fourth Proportional to 20,363.30, 28,101.02 and 11,410.75

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Solution

The fourth proportional to 20,363.30, 28,101.02 and 11,410.75 is: 15,746.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.30 : 28,101.02 = 11,410.75 : x
  2. Step 2: Convert to fraction form
    20,363.30/28,101.02 = 11,410.75/x
  3. Step 3: Cross multiply
    20,363.30x = 28,101.02 × 11,410.75
  4. Step 4: Simplify right side
    20,363.30x = 320,653,713.97
  5. Step 5: Solve for x
    x = 320,653,713.97/20,363.30
  6. Step 6: Final answer
    x = 15,746.65

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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.