Home / 21,838.20-32,762.82-8,690.52

Finding the Fourth Proportional to 21,838.20, 32,762.82 and 8,690.52

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Solution

The fourth proportional to 21,838.20, 32,762.82 and 8,690.52 is: 13,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.20 : 32,762.82 = 8,690.52 : x
  2. Step 2: Convert to fraction form
    21,838.20/32,762.82 = 8,690.52/x
  3. Step 3: Cross multiply
    21,838.20x = 32,762.82 × 8,690.52
  4. Step 4: Simplify right side
    21,838.20x = 284,725,942.47
  5. Step 5: Solve for x
    x = 284,725,942.47/21,838.20
  6. Step 6: Final answer
    x = 13,037.98

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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.