Home / 21,575.43-32,343.98-8,424.81

Finding the Fourth Proportional to 21,575.43, 32,343.98 and 8,424.81

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Solution

The fourth proportional to 21,575.43, 32,343.98 and 8,424.81 is: 12,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.43 : 32,343.98 = 8,424.81 : x
  2. Step 2: Convert to fraction form
    21,575.43/32,343.98 = 8,424.81/x
  3. Step 3: Cross multiply
    21,575.43x = 32,343.98 × 8,424.81
  4. Step 4: Simplify right side
    21,575.43x = 272,491,844.02
  5. Step 5: Solve for x
    x = 272,491,844.02/21,575.43
  6. Step 6: Final answer
    x = 12,629.73

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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.