Home / 20,250.56-27,944.43-12,696.57

Finding the Fourth Proportional to 20,250.56, 27,944.43 and 12,696.57

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Solution

The fourth proportional to 20,250.56, 27,944.43 and 12,696.57 is: 17,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.56 : 27,944.43 = 12,696.57 : x
  2. Step 2: Convert to fraction form
    20,250.56/27,944.43 = 12,696.57/x
  3. Step 3: Cross multiply
    20,250.56x = 27,944.43 × 12,696.57
  4. Step 4: Simplify right side
    20,250.56x = 354,798,411.61
  5. Step 5: Solve for x
    x = 354,798,411.61/20,250.56
  6. Step 6: Final answer
    x = 17,520.43

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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.