Home / 19,319.28-28,979.07-6,839.35

Finding the Fourth Proportional to 19,319.28, 28,979.07 and 6,839.35

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Solution

The fourth proportional to 19,319.28, 28,979.07 and 6,839.35 is: 10,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.28 : 28,979.07 = 6,839.35 : x
  2. Step 2: Convert to fraction form
    19,319.28/28,979.07 = 6,839.35/x
  3. Step 3: Cross multiply
    19,319.28x = 28,979.07 × 6,839.35
  4. Step 4: Simplify right side
    19,319.28x = 198,198,067.32
  5. Step 5: Solve for x
    x = 198,198,067.32/19,319.28
  6. Step 6: Final answer
    x = 10,259.08

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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.