Home / 26,861.60-40,292.40-20,717.60

Finding the Fourth Proportional to 26,861.60, 40,292.40 and 20,717.60

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Solution

The fourth proportional to 26,861.60, 40,292.40 and 20,717.60 is: 31,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.60 : 40,292.40 = 20,717.60 : x
  2. Step 2: Convert to fraction form
    26,861.60/40,292.40 = 20,717.60/x
  3. Step 3: Cross multiply
    26,861.60x = 40,292.40 × 20,717.60
  4. Step 4: Simplify right side
    26,861.60x = 834,761,826.24
  5. Step 5: Solve for x
    x = 834,761,826.24/26,861.60
  6. Step 6: Final answer
    x = 31,076.40

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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.