Home / 51,628.26-71,247.78-28,972.20

Finding the Fourth Proportional to 51,628.26, 71,247.78 and 28,972.20

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Solution

The fourth proportional to 51,628.26, 71,247.78 and 28,972.20 is: 39,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628.26 : 71,247.78 = 28,972.20 : x
  2. Step 2: Convert to fraction form
    51,628.26/71,247.78 = 28,972.20/x
  3. Step 3: Cross multiply
    51,628.26x = 71,247.78 × 28,972.20
  4. Step 4: Simplify right side
    51,628.26x = 2,064,204,931.72
  5. Step 5: Solve for x
    x = 2,064,204,931.72/51,628.26
  6. Step 6: Final answer
    x = 39,982.07

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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.