Home / 19,389.30-29,084.05-6,909.80

Finding the Fourth Proportional to 19,389.30, 29,084.05 and 6,909.80

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Solution

The fourth proportional to 19,389.30, 29,084.05 and 6,909.80 is: 10,364.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.30 : 29,084.05 = 6,909.80 : x
  2. Step 2: Convert to fraction form
    19,389.30/29,084.05 = 6,909.80/x
  3. Step 3: Cross multiply
    19,389.30x = 29,084.05 × 6,909.80
  4. Step 4: Simplify right side
    19,389.30x = 200,964,831.91
  5. Step 5: Solve for x
    x = 200,964,831.91/19,389.30
  6. Step 6: Final answer
    x = 10,364.73

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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.