Home / 19,267.80-28,901.70-6,121.20

Finding the Fourth Proportional to 19,267.80, 28,901.70 and 6,121.20

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Solution

The fourth proportional to 19,267.80, 28,901.70 and 6,121.20 is: 9,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,267.80 : 28,901.70 = 6,121.20 : x
  2. Step 2: Convert to fraction form
    19,267.80/28,901.70 = 6,121.20/x
  3. Step 3: Cross multiply
    19,267.80x = 28,901.70 × 6,121.20
  4. Step 4: Simplify right side
    19,267.80x = 176,913,086.04
  5. Step 5: Solve for x
    x = 176,913,086.04/19,267.80
  6. Step 6: Final answer
    x = 9,181.80

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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.