Home / 26,919.60-40,417.80-20,391.60

Finding the Fourth Proportional to 26,919.60, 40,417.80 and 20,391.60

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Solution

The fourth proportional to 26,919.60, 40,417.80 and 20,391.60 is: 30,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919.60 : 40,417.80 = 20,391.60 : x
  2. Step 2: Convert to fraction form
    26,919.60/40,417.80 = 20,391.60/x
  3. Step 3: Cross multiply
    26,919.60x = 40,417.80 × 20,391.60
  4. Step 4: Simplify right side
    26,919.60x = 824,183,610.48
  5. Step 5: Solve for x
    x = 824,183,610.48/26,919.60
  6. Step 6: Final answer
    x = 30,616.49

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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.