Home / 28,331.37-42,497.06-11,679.80

Finding the Fourth Proportional to 28,331.37, 42,497.06 and 11,679.80

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Solution

The fourth proportional to 28,331.37, 42,497.06 and 11,679.80 is: 17,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331.37 : 42,497.06 = 11,679.80 : x
  2. Step 2: Convert to fraction form
    28,331.37/42,497.06 = 11,679.80/x
  3. Step 3: Cross multiply
    28,331.37x = 42,497.06 × 11,679.80
  4. Step 4: Simplify right side
    28,331.37x = 496,356,890.50
  5. Step 5: Solve for x
    x = 496,356,890.50/28,331.37
  6. Step 6: Final answer
    x = 17,519.69

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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.