Home / 26,555.60-39,785.40-15,453.20

Finding the Fourth Proportional to 26,555.60, 39,785.40 and 15,453.20

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Solution

The fourth proportional to 26,555.60, 39,785.40 and 15,453.20 is: 23,151.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,555.60 : 39,785.40 = 15,453.20 : x
  2. Step 2: Convert to fraction form
    26,555.60/39,785.40 = 15,453.20/x
  3. Step 3: Cross multiply
    26,555.60x = 39,785.40 × 15,453.20
  4. Step 4: Simplify right side
    26,555.60x = 614,811,743.28
  5. Step 5: Solve for x
    x = 614,811,743.28/26,555.60
  6. Step 6: Final answer
    x = 23,151.87

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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.