Home / 40,809.68-61,206.46-11,219.88

Finding the Fourth Proportional to 40,809.68, 61,206.46 and 11,219.88

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Solution

The fourth proportional to 40,809.68, 61,206.46 and 11,219.88 is: 16,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,809.68 : 61,206.46 = 11,219.88 : x
  2. Step 2: Convert to fraction form
    40,809.68/61,206.46 = 11,219.88/x
  3. Step 3: Cross multiply
    40,809.68x = 61,206.46 × 11,219.88
  4. Step 4: Simplify right side
    40,809.68x = 686,729,136.42
  5. Step 5: Solve for x
    x = 686,729,136.42/40,809.68
  6. Step 6: Final answer
    x = 16,827.60

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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.