Home / 21,547.78-32,321.67-6,757.85

Finding the Fourth Proportional to 21,547.78, 32,321.67 and 6,757.85

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Solution

The fourth proportional to 21,547.78, 32,321.67 and 6,757.85 is: 10,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.78 : 32,321.67 = 6,757.85 : x
  2. Step 2: Convert to fraction form
    21,547.78/32,321.67 = 6,757.85/x
  3. Step 3: Cross multiply
    21,547.78x = 32,321.67 × 6,757.85
  4. Step 4: Simplify right side
    21,547.78x = 218,424,997.61
  5. Step 5: Solve for x
    x = 218,424,997.61/21,547.78
  6. Step 6: Final answer
    x = 10,136.78

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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.