Home / 19,410.81-29,122.35-6,930.55

Finding the Fourth Proportional to 19,410.81, 29,122.35 and 6,930.55

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Solution

The fourth proportional to 19,410.81, 29,122.35 and 6,930.55 is: 10,398.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.81 : 29,122.35 = 6,930.55 : x
  2. Step 2: Convert to fraction form
    19,410.81/29,122.35 = 6,930.55/x
  3. Step 3: Cross multiply
    19,410.81x = 29,122.35 × 6,930.55
  4. Step 4: Simplify right side
    19,410.81x = 201,833,902.79
  5. Step 5: Solve for x
    x = 201,833,902.79/19,410.81
  6. Step 6: Final answer
    x = 10,398.02

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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.