Home / 21,972.20-32,958.30-21,826.40

Finding the Fourth Proportional to 21,972.20, 32,958.30 and 21,826.40

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Solution

The fourth proportional to 21,972.20, 32,958.30 and 21,826.40 is: 32,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.20 : 32,958.30 = 21,826.40 : x
  2. Step 2: Convert to fraction form
    21,972.20/32,958.30 = 21,826.40/x
  3. Step 3: Cross multiply
    21,972.20x = 32,958.30 × 21,826.40
  4. Step 4: Simplify right side
    21,972.20x = 719,361,039.12
  5. Step 5: Solve for x
    x = 719,361,039.12/21,972.20
  6. Step 6: Final answer
    x = 32,739.60

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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.