Home / 31,389.20-43,315.68-17,242.24

Finding the Fourth Proportional to 31,389.20, 43,315.68 and 17,242.24

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Solution

The fourth proportional to 31,389.20, 43,315.68 and 17,242.24 is: 23,793.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.20 : 43,315.68 = 17,242.24 : x
  2. Step 2: Convert to fraction form
    31,389.20/43,315.68 = 17,242.24/x
  3. Step 3: Cross multiply
    31,389.20x = 43,315.68 × 17,242.24
  4. Step 4: Simplify right side
    31,389.20x = 746,859,350.32
  5. Step 5: Solve for x
    x = 746,859,350.32/31,389.20
  6. Step 6: Final answer
    x = 23,793.51

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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.