Home / 31,248.36-43,142.85-27,885.39

Finding the Fourth Proportional to 31,248.36, 43,142.85 and 27,885.39

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Solution

The fourth proportional to 31,248.36, 43,142.85 and 27,885.39 is: 38,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248.36 : 43,142.85 = 27,885.39 : x
  2. Step 2: Convert to fraction form
    31,248.36/43,142.85 = 27,885.39/x
  3. Step 3: Cross multiply
    31,248.36x = 43,142.85 × 27,885.39
  4. Step 4: Simplify right side
    31,248.36x = 1,203,055,197.96
  5. Step 5: Solve for x
    x = 1,203,055,197.96/31,248.36
  6. Step 6: Final answer
    x = 38,499.79

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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.