Home / 26,443.20-39,664.80-15,945.60

Finding the Fourth Proportional to 26,443.20, 39,664.80 and 15,945.60

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Solution

The fourth proportional to 26,443.20, 39,664.80 and 15,945.60 is: 23,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,443.20 : 39,664.80 = 15,945.60 : x
  2. Step 2: Convert to fraction form
    26,443.20/39,664.80 = 15,945.60/x
  3. Step 3: Cross multiply
    26,443.20x = 39,664.80 × 15,945.60
  4. Step 4: Simplify right side
    26,443.20x = 632,479,034.88
  5. Step 5: Solve for x
    x = 632,479,034.88/26,443.20
  6. Step 6: Final answer
    x = 23,918.40

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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.