Home / 31,227.12-42,993.54-25,278.48

Finding the Fourth Proportional to 31,227.12, 42,993.54 and 25,278.48

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Solution

The fourth proportional to 31,227.12, 42,993.54 and 25,278.48 is: 34,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,227.12 : 42,993.54 = 25,278.48 : x
  2. Step 2: Convert to fraction form
    31,227.12/42,993.54 = 25,278.48/x
  3. Step 3: Cross multiply
    31,227.12x = 42,993.54 × 25,278.48
  4. Step 4: Simplify right side
    31,227.12x = 1,086,811,341.02
  5. Step 5: Solve for x
    x = 1,086,811,341.02/31,227.12
  6. Step 6: Final answer
    x = 34,803.44

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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.