Home / 27,770.64-38,323.52-15,195.39

Finding the Fourth Proportional to 27,770.64, 38,323.52 and 15,195.39

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Solution

The fourth proportional to 27,770.64, 38,323.52 and 15,195.39 is: 20,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,770.64 : 38,323.52 = 15,195.39 : x
  2. Step 2: Convert to fraction form
    27,770.64/38,323.52 = 15,195.39/x
  3. Step 3: Cross multiply
    27,770.64x = 38,323.52 × 15,195.39
  4. Step 4: Simplify right side
    27,770.64x = 582,340,832.57
  5. Step 5: Solve for x
    x = 582,340,832.57/27,770.64
  6. Step 6: Final answer
    x = 20,969.66

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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.