Home / 19,868.39-29,808.20-6,721.79

Finding the Fourth Proportional to 19,868.39, 29,808.20 and 6,721.79

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Solution

The fourth proportional to 19,868.39, 29,808.20 and 6,721.79 is: 10,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.39 : 29,808.20 = 6,721.79 : x
  2. Step 2: Convert to fraction form
    19,868.39/29,808.20 = 6,721.79/x
  3. Step 3: Cross multiply
    19,868.39x = 29,808.20 × 6,721.79
  4. Step 4: Simplify right side
    19,868.39x = 200,364,328.44
  5. Step 5: Solve for x
    x = 200,364,328.44/19,868.39
  6. Step 6: Final answer
    x = 10,084.58

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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.