Home / 21,395.82-32,089.64-8,246.49

Finding the Fourth Proportional to 21,395.82, 32,089.64 and 8,246.49

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Solution

The fourth proportional to 21,395.82, 32,089.64 and 8,246.49 is: 12,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.82 : 32,089.64 = 8,246.49 : x
  2. Step 2: Convert to fraction form
    21,395.82/32,089.64 = 8,246.49/x
  3. Step 3: Cross multiply
    21,395.82x = 32,089.64 × 8,246.49
  4. Step 4: Simplify right side
    21,395.82x = 264,626,733.80
  5. Step 5: Solve for x
    x = 264,626,733.80/21,395.82
  6. Step 6: Final answer
    x = 12,368.15

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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.