Home / 19,817.40-29,730.66-6,669.42

Finding the Fourth Proportional to 19,817.40, 29,730.66 and 6,669.42

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Solution

The fourth proportional to 19,817.40, 29,730.66 and 6,669.42 is: 10,005.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.40 : 29,730.66 = 6,669.42 : x
  2. Step 2: Convert to fraction form
    19,817.40/29,730.66 = 6,669.42/x
  3. Step 3: Cross multiply
    19,817.40x = 29,730.66 × 6,669.42
  4. Step 4: Simplify right side
    19,817.40x = 198,286,258.42
  5. Step 5: Solve for x
    x = 198,286,258.42/19,817.40
  6. Step 6: Final answer
    x = 10,005.66

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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.