Home / 19,180.90-28,769.01-5,141.98

Finding the Fourth Proportional to 19,180.90, 28,769.01 and 5,141.98

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Solution

The fourth proportional to 19,180.90, 28,769.01 and 5,141.98 is: 7,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.90 : 28,769.01 = 5,141.98 : x
  2. Step 2: Convert to fraction form
    19,180.90/28,769.01 = 5,141.98/x
  3. Step 3: Cross multiply
    19,180.90x = 28,769.01 × 5,141.98
  4. Step 4: Simplify right side
    19,180.90x = 147,929,674.04
  5. Step 5: Solve for x
    x = 147,929,674.04/19,180.90
  6. Step 6: Final answer
    x = 7,712.34

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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.