Home / 26,155.20-39,175.20-20,265.60

Finding the Fourth Proportional to 26,155.20, 39,175.20 and 20,265.60

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Solution

The fourth proportional to 26,155.20, 39,175.20 and 20,265.60 is: 30,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,155.20 : 39,175.20 = 20,265.60 : x
  2. Step 2: Convert to fraction form
    26,155.20/39,175.20 = 20,265.60/x
  3. Step 3: Cross multiply
    26,155.20x = 39,175.20 × 20,265.60
  4. Step 4: Simplify right side
    26,155.20x = 793,908,933.12
  5. Step 5: Solve for x
    x = 793,908,933.12/26,155.20
  6. Step 6: Final answer
    x = 30,353.77

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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.