Home / 26,581.20-39,904.20-13,426.80

Finding the Fourth Proportional to 26,581.20, 39,904.20 and 13,426.80

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Solution

The fourth proportional to 26,581.20, 39,904.20 and 13,426.80 is: 20,156.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,581.20 : 39,904.20 = 13,426.80 : x
  2. Step 2: Convert to fraction form
    26,581.20/39,904.20 = 13,426.80/x
  3. Step 3: Cross multiply
    26,581.20x = 39,904.20 × 13,426.80
  4. Step 4: Simplify right side
    26,581.20x = 535,785,712.56
  5. Step 5: Solve for x
    x = 535,785,712.56/26,581.20
  6. Step 6: Final answer
    x = 20,156.57

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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.