Home / 19,829.04-29,742.78-6,681.12

Finding the Fourth Proportional to 19,829.04, 29,742.78 and 6,681.12

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Solution

The fourth proportional to 19,829.04, 29,742.78 and 6,681.12 is: 10,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.04 : 29,742.78 = 6,681.12 : x
  2. Step 2: Convert to fraction form
    19,829.04/29,742.78 = 6,681.12/x
  3. Step 3: Cross multiply
    19,829.04x = 29,742.78 × 6,681.12
  4. Step 4: Simplify right side
    19,829.04x = 198,715,082.31
  5. Step 5: Solve for x
    x = 198,715,082.31/19,829.04
  6. Step 6: Final answer
    x = 10,021.42

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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.