Home / 31,256.70-43,135.28-17,109.54

Finding the Fourth Proportional to 31,256.70, 43,135.28 and 17,109.54

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Solution

The fourth proportional to 31,256.70, 43,135.28 and 17,109.54 is: 23,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,256.70 : 43,135.28 = 17,109.54 : x
  2. Step 2: Convert to fraction form
    31,256.70/43,135.28 = 17,109.54/x
  3. Step 3: Cross multiply
    31,256.70x = 43,135.28 × 17,109.54
  4. Step 4: Simplify right side
    31,256.70x = 738,024,798.57
  5. Step 5: Solve for x
    x = 738,024,798.57/31,256.70
  6. Step 6: Final answer
    x = 23,611.73

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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.