Home / 31,389.15-43,317.78-17,049.51

Finding the Fourth Proportional to 31,389.15, 43,317.78 and 17,049.51

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Solution

The fourth proportional to 31,389.15, 43,317.78 and 17,049.51 is: 23,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.15 : 43,317.78 = 17,049.51 : x
  2. Step 2: Convert to fraction form
    31,389.15/43,317.78 = 17,049.51/x
  3. Step 3: Cross multiply
    31,389.15x = 43,317.78 × 17,049.51
  4. Step 4: Simplify right side
    31,389.15x = 738,546,923.29
  5. Step 5: Solve for x
    x = 738,546,923.29/31,389.15
  6. Step 6: Final answer
    x = 23,528.73

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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.