Home / 27,672.18-38,201.73-18,766.74

Finding the Fourth Proportional to 27,672.18, 38,201.73 and 18,766.74

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Solution

The fourth proportional to 27,672.18, 38,201.73 and 18,766.74 is: 25,907.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.18 : 38,201.73 = 18,766.74 : x
  2. Step 2: Convert to fraction form
    27,672.18/38,201.73 = 18,766.74/x
  3. Step 3: Cross multiply
    27,672.18x = 38,201.73 × 18,766.74
  4. Step 4: Simplify right side
    27,672.18x = 716,921,934.46
  5. Step 5: Solve for x
    x = 716,921,934.46/27,672.18
  6. Step 6: Final answer
    x = 25,907.68

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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.