Home / 19,279.95-28,923.35-6,807.21

Finding the Fourth Proportional to 19,279.95, 28,923.35 and 6,807.21

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Solution

The fourth proportional to 19,279.95, 28,923.35 and 6,807.21 is: 10,212.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.95 : 28,923.35 = 6,807.21 : x
  2. Step 2: Convert to fraction form
    19,279.95/28,923.35 = 6,807.21/x
  3. Step 3: Cross multiply
    19,279.95x = 28,923.35 × 6,807.21
  4. Step 4: Simplify right side
    19,279.95x = 196,887,476.33
  5. Step 5: Solve for x
    x = 196,887,476.33/19,279.95
  6. Step 6: Final answer
    x = 10,212.03

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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.