Home / 19,911.66-29,867.57-5,871.86

Finding the Fourth Proportional to 19,911.66, 29,867.57 and 5,871.86

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Solution

The fourth proportional to 19,911.66, 29,867.57 and 5,871.86 is: 8,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.66 : 29,867.57 = 5,871.86 : x
  2. Step 2: Convert to fraction form
    19,911.66/29,867.57 = 5,871.86/x
  3. Step 3: Cross multiply
    19,911.66x = 29,867.57 × 5,871.86
  4. Step 4: Simplify right side
    19,911.66x = 175,378,010.88
  5. Step 5: Solve for x
    x = 175,378,010.88/19,911.66
  6. Step 6: Final answer
    x = 8,807.80

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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.