Home / 20,023.11-27,631.71-11,070.84

Finding the Fourth Proportional to 20,023.11, 27,631.71 and 11,070.84

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Solution

The fourth proportional to 20,023.11, 27,631.71 and 11,070.84 is: 15,277.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023.11 : 27,631.71 = 11,070.84 : x
  2. Step 2: Convert to fraction form
    20,023.11/27,631.71 = 11,070.84/x
  3. Step 3: Cross multiply
    20,023.11x = 27,631.71 × 11,070.84
  4. Step 4: Simplify right side
    20,023.11x = 305,906,240.34
  5. Step 5: Solve for x
    x = 305,906,240.34/20,023.11
  6. Step 6: Final answer
    x = 15,277.66

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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.