Home / 21,412.38-32,121.63-6,622.46

Finding the Fourth Proportional to 21,412.38, 32,121.63 and 6,622.46

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Solution

The fourth proportional to 21,412.38, 32,121.63 and 6,622.46 is: 9,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.38 : 32,121.63 = 6,622.46 : x
  2. Step 2: Convert to fraction form
    21,412.38/32,121.63 = 6,622.46/x
  3. Step 3: Cross multiply
    21,412.38x = 32,121.63 × 6,622.46
  4. Step 4: Simplify right side
    21,412.38x = 212,724,169.66
  5. Step 5: Solve for x
    x = 212,724,169.66/21,412.38
  6. Step 6: Final answer
    x = 9,934.63

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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.