Home / 31,074.06-42,882.30-18,498

Finding the Fourth Proportional to 31,074.06, 42,882.30 and 18,498

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Solution

The fourth proportional to 31,074.06, 42,882.30 and 18,498 is: 25,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.06 : 42,882.30 = 18,498 : x
  2. Step 2: Convert to fraction form
    31,074.06/42,882.30 = 18,498/x
  3. Step 3: Cross multiply
    31,074.06x = 42,882.30 × 18,498
  4. Step 4: Simplify right side
    31,074.06x = 793,236,785.40
  5. Step 5: Solve for x
    x = 793,236,785.40/31,074.06
  6. Step 6: Final answer
    x = 25,527.30

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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.