Home / 21,962.90-32,932.20-7,164.20

Finding the Fourth Proportional to 21,962.90, 32,932.20 and 7,164.20

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Solution

The fourth proportional to 21,962.90, 32,932.20 and 7,164.20 is: 10,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.90 : 32,932.20 = 7,164.20 : x
  2. Step 2: Convert to fraction form
    21,962.90/32,932.20 = 7,164.20/x
  3. Step 3: Cross multiply
    21,962.90x = 32,932.20 × 7,164.20
  4. Step 4: Simplify right side
    21,962.90x = 235,932,867.24
  5. Step 5: Solve for x
    x = 235,932,867.24/21,962.90
  6. Step 6: Final answer
    x = 10,742.34

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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.