Home / 19,890.30-29,841.04-6,743.66

Finding the Fourth Proportional to 19,890.30, 29,841.04 and 6,743.66

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Solution

The fourth proportional to 19,890.30, 29,841.04 and 6,743.66 is: 10,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.30 : 29,841.04 = 6,743.66 : x
  2. Step 2: Convert to fraction form
    19,890.30/29,841.04 = 6,743.66/x
  3. Step 3: Cross multiply
    19,890.30x = 29,841.04 × 6,743.66
  4. Step 4: Simplify right side
    19,890.30x = 201,237,827.81
  5. Step 5: Solve for x
    x = 201,237,827.81/19,890.30
  6. Step 6: Final answer
    x = 10,117.39

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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.