Home / 19,440.70-29,159.88-11,439.96

Finding the Fourth Proportional to 19,440.70, 29,159.88 and 11,439.96

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Solution

The fourth proportional to 19,440.70, 29,159.88 and 11,439.96 is: 17,159.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.70 : 29,159.88 = 11,439.96 : x
  2. Step 2: Convert to fraction form
    19,440.70/29,159.88 = 11,439.96/x
  3. Step 3: Cross multiply
    19,440.70x = 29,159.88 × 11,439.96
  4. Step 4: Simplify right side
    19,440.70x = 333,587,860.80
  5. Step 5: Solve for x
    x = 333,587,860.80/19,440.70
  6. Step 6: Final answer
    x = 17,159.25

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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.