Home / 19,805.81-29,715.33-6,479.41

Finding the Fourth Proportional to 19,805.81, 29,715.33 and 6,479.41

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Solution

The fourth proportional to 19,805.81, 29,715.33 and 6,479.41 is: 9,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.81 : 29,715.33 = 6,479.41 : x
  2. Step 2: Convert to fraction form
    19,805.81/29,715.33 = 6,479.41/x
  3. Step 3: Cross multiply
    19,805.81x = 29,715.33 × 6,479.41
  4. Step 4: Simplify right side
    19,805.81x = 192,537,806.36
  5. Step 5: Solve for x
    x = 192,537,806.36/19,805.81
  6. Step 6: Final answer
    x = 9,721.28

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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.