Home / 20,743.39-31,118.53-6,706.95

Finding the Fourth Proportional to 20,743.39, 31,118.53 and 6,706.95

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Solution

The fourth proportional to 20,743.39, 31,118.53 and 6,706.95 is: 10,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.39 : 31,118.53 = 6,706.95 : x
  2. Step 2: Convert to fraction form
    20,743.39/31,118.53 = 6,706.95/x
  3. Step 3: Cross multiply
    20,743.39x = 31,118.53 × 6,706.95
  4. Step 4: Simplify right side
    20,743.39x = 208,710,478.94
  5. Step 5: Solve for x
    x = 208,710,478.94/20,743.39
  6. Step 6: Final answer
    x = 10,061.54

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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.