Home / 19,200.38-28,816.97-7,521.80

Finding the Fourth Proportional to 19,200.38, 28,816.97 and 7,521.80

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Solution

The fourth proportional to 19,200.38, 28,816.97 and 7,521.80 is: 11,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.38 : 28,816.97 = 7,521.80 : x
  2. Step 2: Convert to fraction form
    19,200.38/28,816.97 = 7,521.80/x
  3. Step 3: Cross multiply
    19,200.38x = 28,816.97 × 7,521.80
  4. Step 4: Simplify right side
    19,200.38x = 216,755,303.25
  5. Step 5: Solve for x
    x = 216,755,303.25/19,200.38
  6. Step 6: Final answer
    x = 11,289.12

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1.5x scale

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.