Home / 31,224.12-42,989.40-25,275.48

Finding the Fourth Proportional to 31,224.12, 42,989.40 and 25,275.48

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Solution

The fourth proportional to 31,224.12, 42,989.40 and 25,275.48 is: 34,799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,224.12 : 42,989.40 = 25,275.48 : x
  2. Step 2: Convert to fraction form
    31,224.12/42,989.40 = 25,275.48/x
  3. Step 3: Cross multiply
    31,224.12x = 42,989.40 × 25,275.48
  4. Step 4: Simplify right side
    31,224.12x = 1,086,577,719.91
  5. Step 5: Solve for x
    x = 1,086,577,719.91/31,224.12
  6. Step 6: Final answer
    x = 34,799.31

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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.