Home / 28,240.14-42,357.91-9,519.77

Finding the Fourth Proportional to 28,240.14, 42,357.91 and 9,519.77

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Solution

The fourth proportional to 28,240.14, 42,357.91 and 9,519.77 is: 14,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.14 : 42,357.91 = 9,519.77 : x
  2. Step 2: Convert to fraction form
    28,240.14/42,357.91 = 9,519.77/x
  3. Step 3: Cross multiply
    28,240.14x = 42,357.91 × 9,519.77
  4. Step 4: Simplify right side
    28,240.14x = 403,237,560.88
  5. Step 5: Solve for x
    x = 403,237,560.88/28,240.14
  6. Step 6: Final answer
    x = 14,278.88

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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.