Home / 25,511.40-38,211.54-12,336

Finding the Fourth Proportional to 25,511.40, 38,211.54 and 12,336

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Solution

The fourth proportional to 25,511.40, 38,211.54 and 12,336 is: 18,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,511.40 : 38,211.54 = 12,336 : x
  2. Step 2: Convert to fraction form
    25,511.40/38,211.54 = 12,336/x
  3. Step 3: Cross multiply
    25,511.40x = 38,211.54 × 12,336
  4. Step 4: Simplify right side
    25,511.40x = 471,377,557.44
  5. Step 5: Solve for x
    x = 471,377,557.44/25,511.40
  6. Step 6: Final answer
    x = 18,477.13

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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.