Home / 31,532.68-43,513.34-18,103.04

Finding the Fourth Proportional to 31,532.68, 43,513.34 and 18,103.04

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Solution

The fourth proportional to 31,532.68, 43,513.34 and 18,103.04 is: 24,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,532.68 : 43,513.34 = 18,103.04 : x
  2. Step 2: Convert to fraction form
    31,532.68/43,513.34 = 18,103.04/x
  3. Step 3: Cross multiply
    31,532.68x = 43,513.34 × 18,103.04
  4. Step 4: Simplify right side
    31,532.68x = 787,723,734.55
  5. Step 5: Solve for x
    x = 787,723,734.55/31,532.68
  6. Step 6: Final answer
    x = 24,981.19

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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.