Home / 31,253.05-43,149.35-27,890.10

Finding the Fourth Proportional to 31,253.05, 43,149.35 and 27,890.10

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Solution

The fourth proportional to 31,253.05, 43,149.35 and 27,890.10 is: 38,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,253.05 : 43,149.35 = 27,890.10 : x
  2. Step 2: Convert to fraction form
    31,253.05/43,149.35 = 27,890.10/x
  3. Step 3: Cross multiply
    31,253.05x = 43,149.35 × 27,890.10
  4. Step 4: Simplify right side
    31,253.05x = 1,203,439,686.44
  5. Step 5: Solve for x
    x = 1,203,439,686.44/31,253.05
  6. Step 6: Final answer
    x = 38,506.31

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Double scale
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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.