Home / 28,390.27-42,553.56-11,519.36

Finding the Fourth Proportional to 28,390.27, 42,553.56 and 11,519.36

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Solution

The fourth proportional to 28,390.27, 42,553.56 and 11,519.36 is: 17,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.27 : 42,553.56 = 11,519.36 : x
  2. Step 2: Convert to fraction form
    28,390.27/42,553.56 = 11,519.36/x
  3. Step 3: Cross multiply
    28,390.27x = 42,553.56 × 11,519.36
  4. Step 4: Simplify right side
    28,390.27x = 490,189,776.92
  5. Step 5: Solve for x
    x = 490,189,776.92/28,390.27
  6. Step 6: Final answer
    x = 17,266.12

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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.