Home / 20,750.01-28,635.71-11,319.09

Finding the Fourth Proportional to 20,750.01, 28,635.71 and 11,319.09

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Solution

The fourth proportional to 20,750.01, 28,635.71 and 11,319.09 is: 15,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,750.01 : 28,635.71 = 11,319.09 : x
  2. Step 2: Convert to fraction form
    20,750.01/28,635.71 = 11,319.09/x
  3. Step 3: Cross multiply
    20,750.01x = 28,635.71 × 11,319.09
  4. Step 4: Simplify right side
    20,750.01x = 324,130,122.11
  5. Step 5: Solve for x
    x = 324,130,122.11/20,750.01
  6. Step 6: Final answer
    x = 15,620.72

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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.