Home / 19,412.66-29,111.61-6,930.35

Finding the Fourth Proportional to 19,412.66, 29,111.61 and 6,930.35

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Solution

The fourth proportional to 19,412.66, 29,111.61 and 6,930.35 is: 10,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.66 : 29,111.61 = 6,930.35 : x
  2. Step 2: Convert to fraction form
    19,412.66/29,111.61 = 6,930.35/x
  3. Step 3: Cross multiply
    19,412.66x = 29,111.61 × 6,930.35
  4. Step 4: Simplify right side
    19,412.66x = 201,753,719.14
  5. Step 5: Solve for x
    x = 201,753,719.14/19,412.66
  6. Step 6: Final answer
    x = 10,392.90

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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.