Home / 21,778.32-32,661.44-5,979.56

Finding the Fourth Proportional to 21,778.32, 32,661.44 and 5,979.56

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Solution

The fourth proportional to 21,778.32, 32,661.44 and 5,979.56 is: 8,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.32 : 32,661.44 = 5,979.56 : x
  2. Step 2: Convert to fraction form
    21,778.32/32,661.44 = 5,979.56/x
  3. Step 3: Cross multiply
    21,778.32x = 32,661.44 × 5,979.56
  4. Step 4: Simplify right side
    21,778.32x = 195,301,040.17
  5. Step 5: Solve for x
    x = 195,301,040.17/21,778.32
  6. Step 6: Final answer
    x = 8,967.68

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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.