Home / 21,412.76-32,122.20-6,622.83

Finding the Fourth Proportional to 21,412.76, 32,122.20 and 6,622.83

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Solution

The fourth proportional to 21,412.76, 32,122.20 and 6,622.83 is: 9,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.76 : 32,122.20 = 6,622.83 : x
  2. Step 2: Convert to fraction form
    21,412.76/32,122.20 = 6,622.83/x
  3. Step 3: Cross multiply
    21,412.76x = 32,122.20 × 6,622.83
  4. Step 4: Simplify right side
    21,412.76x = 212,739,869.83
  5. Step 5: Solve for x
    x = 212,739,869.83/21,412.76
  6. Step 6: Final answer
    x = 9,935.19

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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.