Home / 21,295.44-31,945.14-7,250.76

Finding the Fourth Proportional to 21,295.44, 31,945.14 and 7,250.76

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Solution

The fourth proportional to 21,295.44, 31,945.14 and 7,250.76 is: 10,876.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.44 : 31,945.14 = 7,250.76 : x
  2. Step 2: Convert to fraction form
    21,295.44/31,945.14 = 7,250.76/x
  3. Step 3: Cross multiply
    21,295.44x = 31,945.14 × 7,250.76
  4. Step 4: Simplify right side
    21,295.44x = 231,626,543.31
  5. Step 5: Solve for x
    x = 231,626,543.31/21,295.44
  6. Step 6: Final answer
    x = 10,876.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.