Home / 31,338.48-43,254.36-20,141.04

Finding the Fourth Proportional to 31,338.48, 43,254.36 and 20,141.04

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Solution

The fourth proportional to 31,338.48, 43,254.36 and 20,141.04 is: 27,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.48 : 43,254.36 = 20,141.04 : x
  2. Step 2: Convert to fraction form
    31,338.48/43,254.36 = 20,141.04/x
  3. Step 3: Cross multiply
    31,338.48x = 43,254.36 × 20,141.04
  4. Step 4: Simplify right side
    31,338.48x = 871,187,794.93
  5. Step 5: Solve for x
    x = 871,187,794.93/31,338.48
  6. Step 6: Final answer
    x = 27,799.30

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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.