Home / 39,966.85-55,175.40-25,827.76

Finding the Fourth Proportional to 39,966.85, 55,175.40 and 25,827.76

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Solution

The fourth proportional to 39,966.85, 55,175.40 and 25,827.76 is: 35,655.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966.85 : 55,175.40 = 25,827.76 : x
  2. Step 2: Convert to fraction form
    39,966.85/55,175.40 = 25,827.76/x
  3. Step 3: Cross multiply
    39,966.85x = 55,175.40 × 25,827.76
  4. Step 4: Simplify right side
    39,966.85x = 1,425,056,584.09
  5. Step 5: Solve for x
    x = 1,425,056,584.09/39,966.85
  6. Step 6: Final answer
    x = 35,655.97

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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.