Home / 20,052.60-27,672.93-10,978.76

Finding the Fourth Proportional to 20,052.60, 27,672.93 and 10,978.76

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Solution

The fourth proportional to 20,052.60, 27,672.93 and 10,978.76 is: 15,150.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,052.60 : 27,672.93 = 10,978.76 : x
  2. Step 2: Convert to fraction form
    20,052.60/27,672.93 = 10,978.76/x
  3. Step 3: Cross multiply
    20,052.60x = 27,672.93 × 10,978.76
  4. Step 4: Simplify right side
    20,052.60x = 303,814,318.60
  5. Step 5: Solve for x
    x = 303,814,318.60/20,052.60
  6. Step 6: Final answer
    x = 15,150.87

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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.