Home / 19,283.11-28,952.25-10,979.80

Finding the Fourth Proportional to 19,283.11, 28,952.25 and 10,979.80

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Solution

The fourth proportional to 19,283.11, 28,952.25 and 10,979.80 is: 16,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.11 : 28,952.25 = 10,979.80 : x
  2. Step 2: Convert to fraction form
    19,283.11/28,952.25 = 10,979.80/x
  3. Step 3: Cross multiply
    19,283.11x = 28,952.25 × 10,979.80
  4. Step 4: Simplify right side
    19,283.11x = 317,889,914.55
  5. Step 5: Solve for x
    x = 317,889,914.55/19,283.11
  6. Step 6: Final answer
    x = 16,485.41

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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.