Home / 21,975.12-32,962.56-6,393.12

Finding the Fourth Proportional to 21,975.12, 32,962.56 and 6,393.12

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Solution

The fourth proportional to 21,975.12, 32,962.56 and 6,393.12 is: 9,589.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.12 : 32,962.56 = 6,393.12 : x
  2. Step 2: Convert to fraction form
    21,975.12/32,962.56 = 6,393.12/x
  3. Step 3: Cross multiply
    21,975.12x = 32,962.56 × 6,393.12
  4. Step 4: Simplify right side
    21,975.12x = 210,733,601.59
  5. Step 5: Solve for x
    x = 210,733,601.59/21,975.12
  6. Step 6: Final answer
    x = 9,589.65

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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.