Home / 21,581,974.20-32,372,961.30-20,586,646.20

Finding the Fourth Proportional to 21,581,974.20, 32,372,961.30 and 20,586,646.20

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Solution

The fourth proportional to 21,581,974.20, 32,372,961.30 and 20,586,646.20 is: 30,879,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,581,974.20 : 32,372,961.30 = 20,586,646.20 : x
  2. Step 2: Convert to fraction form
    21,581,974.20/32,372,961.30 = 20,586,646.20/x
  3. Step 3: Cross multiply
    21,581,974.20x = 32,372,961.30 × 20,586,646.20
  4. Step 4: Simplify right side
    21,581,974.20x = 666,450,700,729,392
  5. Step 5: Solve for x
    x = 666,450,700,729,392/21,581,974.20
  6. Step 6: Final answer
    x = 30,879,969.30

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Double scale
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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.