Home / 19,118.43-28,681.70-5,971.79

Finding the Fourth Proportional to 19,118.43, 28,681.70 and 5,971.79

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Solution

The fourth proportional to 19,118.43, 28,681.70 and 5,971.79 is: 8,958.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.43 : 28,681.70 = 5,971.79 : x
  2. Step 2: Convert to fraction form
    19,118.43/28,681.70 = 5,971.79/x
  3. Step 3: Cross multiply
    19,118.43x = 28,681.70 × 5,971.79
  4. Step 4: Simplify right side
    19,118.43x = 171,281,131.09
  5. Step 5: Solve for x
    x = 171,281,131.09/19,118.43
  6. Step 6: Final answer
    x = 8,958.95

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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.