Home / 26,411.20-39,615.36-8,879.20

Finding the Fourth Proportional to 26,411.20, 39,615.36 and 8,879.20

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Solution

The fourth proportional to 26,411.20, 39,615.36 and 8,879.20 is: 13,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,411.20 : 39,615.36 = 8,879.20 : x
  2. Step 2: Convert to fraction form
    26,411.20/39,615.36 = 8,879.20/x
  3. Step 3: Cross multiply
    26,411.20x = 39,615.36 × 8,879.20
  4. Step 4: Simplify right side
    26,411.20x = 351,752,704.51
  5. Step 5: Solve for x
    x = 351,752,704.51/26,411.20
  6. Step 6: Final answer
    x = 13,318.32

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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.