Home / 20,336.04-30,474.36-12,916.98

Finding the Fourth Proportional to 20,336.04, 30,474.36 and 12,916.98

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Solution

The fourth proportional to 20,336.04, 30,474.36 and 12,916.98 is: 19,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.04 : 30,474.36 = 12,916.98 : x
  2. Step 2: Convert to fraction form
    20,336.04/30,474.36 = 12,916.98/x
  3. Step 3: Cross multiply
    20,336.04x = 30,474.36 × 12,916.98
  4. Step 4: Simplify right side
    20,336.04x = 393,636,698.63
  5. Step 5: Solve for x
    x = 393,636,698.63/20,336.04
  6. Step 6: Final answer
    x = 19,356.61

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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.