Home / 31,532.74-43,517.19-17,386.90

Finding the Fourth Proportional to 31,532.74, 43,517.19 and 17,386.90

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Solution

The fourth proportional to 31,532.74, 43,517.19 and 17,386.90 is: 23,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,532.74 : 43,517.19 = 17,386.90 : x
  2. Step 2: Convert to fraction form
    31,532.74/43,517.19 = 17,386.90/x
  3. Step 3: Cross multiply
    31,532.74x = 43,517.19 × 17,386.90
  4. Step 4: Simplify right side
    31,532.74x = 756,629,030.81
  5. Step 5: Solve for x
    x = 756,629,030.81/31,532.74
  6. Step 6: Final answer
    x = 23,995.03

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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.