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Finding the Fourth Proportional to 39,750.59, 54,859.30 and 21,849.08

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Solution

The fourth proportional to 39,750.59, 54,859.30 and 21,849.08 is: 30,153.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,750.59 : 54,859.30 = 21,849.08 : x
  2. Step 2: Convert to fraction form
    39,750.59/54,859.30 = 21,849.08/x
  3. Step 3: Cross multiply
    39,750.59x = 54,859.30 × 21,849.08
  4. Step 4: Simplify right side
    39,750.59x = 1,198,625,198.41
  5. Step 5: Solve for x
    x = 1,198,625,198.41/39,750.59
  6. Step 6: Final answer
    x = 30,153.65

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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.