Home / 39,621.42-54,694.98-27,731.43

Finding the Fourth Proportional to 39,621.42, 54,694.98 and 27,731.43

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Solution

The fourth proportional to 39,621.42, 54,694.98 and 27,731.43 is: 38,281.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,621.42 : 54,694.98 = 27,731.43 : x
  2. Step 2: Convert to fraction form
    39,621.42/54,694.98 = 27,731.43/x
  3. Step 3: Cross multiply
    39,621.42x = 54,694.98 × 27,731.43
  4. Step 4: Simplify right side
    39,621.42x = 1,516,770,009.22
  5. Step 5: Solve for x
    x = 1,516,770,009.22/39,621.42
  6. Step 6: Final answer
    x = 38,281.57

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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.