Home / 31,734.38-43,813.36-20,423.53

Finding the Fourth Proportional to 31,734.38, 43,813.36 and 20,423.53

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Solution

The fourth proportional to 31,734.38, 43,813.36 and 20,423.53 is: 28,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,734.38 : 43,813.36 = 20,423.53 : x
  2. Step 2: Convert to fraction form
    31,734.38/43,813.36 = 20,423.53/x
  3. Step 3: Cross multiply
    31,734.38x = 43,813.36 × 20,423.53
  4. Step 4: Simplify right side
    31,734.38x = 894,823,476.07
  5. Step 5: Solve for x
    x = 894,823,476.07/31,734.38
  6. Step 6: Final answer
    x = 28,197.29

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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.