Home / 31,170.78-46,770.75-18,034.20

Finding the Fourth Proportional to 31,170.78, 46,770.75 and 18,034.20

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Solution

The fourth proportional to 31,170.78, 46,770.75 and 18,034.20 is: 27,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.78 : 46,770.75 = 18,034.20 : x
  2. Step 2: Convert to fraction form
    31,170.78/46,770.75 = 18,034.20/x
  3. Step 3: Cross multiply
    31,170.78x = 46,770.75 × 18,034.20
  4. Step 4: Simplify right side
    31,170.78x = 843,473,059.65
  5. Step 5: Solve for x
    x = 843,473,059.65/31,170.78
  6. Step 6: Final answer
    x = 27,059.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.