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Finding the Fourth Proportional to 21,495.80, 32,235.39 and 8,346.39

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Solution

The fourth proportional to 21,495.80, 32,235.39 and 8,346.39 is: 12,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.80 : 32,235.39 = 8,346.39 : x
  2. Step 2: Convert to fraction form
    21,495.80/32,235.39 = 8,346.39/x
  3. Step 3: Cross multiply
    21,495.80x = 32,235.39 × 8,346.39
  4. Step 4: Simplify right side
    21,495.80x = 269,049,136.74
  5. Step 5: Solve for x
    x = 269,049,136.74/21,495.80
  6. Step 6: Final answer
    x = 12,516.36

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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.