Home / 21,037,286.20-31,561,834.20-10,254,938.80

Finding the Fourth Proportional to 21,037,286.20, 31,561,834.20 and 10,254,938.80

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Solution

The fourth proportional to 21,037,286.20, 31,561,834.20 and 10,254,938.80 is: 15,385,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037,286.20 : 31,561,834.20 = 10,254,938.80 : x
  2. Step 2: Convert to fraction form
    21,037,286.20/31,561,834.20 = 10,254,938.80/x
  3. Step 3: Cross multiply
    21,037,286.20x = 31,561,834.20 × 10,254,938.80
  4. Step 4: Simplify right side
    21,037,286.20x = 323,664,678,136,747
  5. Step 5: Solve for x
    x = 323,664,678,136,747/21,037,286.20
  6. Step 6: Final answer
    x = 15,385,286.63

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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.