Home / 21,972.60-32,964.51-6,390.22

Finding the Fourth Proportional to 21,972.60, 32,964.51 and 6,390.22

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Solution

The fourth proportional to 21,972.60, 32,964.51 and 6,390.22 is: 9,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.60 : 32,964.51 = 6,390.22 : x
  2. Step 2: Convert to fraction form
    21,972.60/32,964.51 = 6,390.22/x
  3. Step 3: Cross multiply
    21,972.60x = 32,964.51 × 6,390.22
  4. Step 4: Simplify right side
    21,972.60x = 210,650,471.09
  5. Step 5: Solve for x
    x = 210,650,471.09/21,972.60
  6. Step 6: Final answer
    x = 9,586.96

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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.