Home / 28,195.88-42,296.67-10,431.23

Finding the Fourth Proportional to 28,195.88, 42,296.67 and 10,431.23

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Solution

The fourth proportional to 28,195.88, 42,296.67 and 10,431.23 is: 15,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.88 : 42,296.67 = 10,431.23 : x
  2. Step 2: Convert to fraction form
    28,195.88/42,296.67 = 10,431.23/x
  3. Step 3: Cross multiply
    28,195.88x = 42,296.67 × 10,431.23
  4. Step 4: Simplify right side
    28,195.88x = 441,206,081.52
  5. Step 5: Solve for x
    x = 441,206,081.52/28,195.88
  6. Step 6: Final answer
    x = 15,647.89

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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.