Home / 27,750.60-38,298.24-15,811.38

Finding the Fourth Proportional to 27,750.60, 38,298.24 and 15,811.38

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Solution

The fourth proportional to 27,750.60, 38,298.24 and 15,811.38 is: 21,821.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,750.60 : 38,298.24 = 15,811.38 : x
  2. Step 2: Convert to fraction form
    27,750.60/38,298.24 = 15,811.38/x
  3. Step 3: Cross multiply
    27,750.60x = 38,298.24 × 15,811.38
  4. Step 4: Simplify right side
    27,750.60x = 605,548,025.97
  5. Step 5: Solve for x
    x = 605,548,025.97/27,750.60
  6. Step 6: Final answer
    x = 21,821.08

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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.