Home / 31,576.13-43,569.85-18,144.53

Finding the Fourth Proportional to 31,576.13, 43,569.85 and 18,144.53

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Solution

The fourth proportional to 31,576.13, 43,569.85 and 18,144.53 is: 25,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.13 : 43,569.85 = 18,144.53 : x
  2. Step 2: Convert to fraction form
    31,576.13/43,569.85 = 18,144.53/x
  3. Step 3: Cross multiply
    31,576.13x = 43,569.85 × 18,144.53
  4. Step 4: Simplify right side
    31,576.13x = 790,554,450.42
  5. Step 5: Solve for x
    x = 790,554,450.42/31,576.13
  6. Step 6: Final answer
    x = 25,036.46

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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.