Home / 26,591.60-39,817.20-21,301.76

Finding the Fourth Proportional to 26,591.60, 39,817.20 and 21,301.76

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Solution

The fourth proportional to 26,591.60, 39,817.20 and 21,301.76 is: 31,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,591.60 : 39,817.20 = 21,301.76 : x
  2. Step 2: Convert to fraction form
    26,591.60/39,817.20 = 21,301.76/x
  3. Step 3: Cross multiply
    26,591.60x = 39,817.20 × 21,301.76
  4. Step 4: Simplify right side
    26,591.60x = 848,176,438.27
  5. Step 5: Solve for x
    x = 848,176,438.27/26,591.60
  6. Step 6: Final answer
    x = 31,896.40

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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.