Home / 31,270.36-43,152.78-17,122.36

Finding the Fourth Proportional to 31,270.36, 43,152.78 and 17,122.36

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Solution

The fourth proportional to 31,270.36, 43,152.78 and 17,122.36 is: 23,628.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.36 : 43,152.78 = 17,122.36 : x
  2. Step 2: Convert to fraction form
    31,270.36/43,152.78 = 17,122.36/x
  3. Step 3: Cross multiply
    31,270.36x = 43,152.78 × 17,122.36
  4. Step 4: Simplify right side
    31,270.36x = 738,877,434.16
  5. Step 5: Solve for x
    x = 738,877,434.16/31,270.36
  6. Step 6: Final answer
    x = 23,628.68

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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.