Home / 28,046.72-42,094.56-11,415.80

Finding the Fourth Proportional to 28,046.72, 42,094.56 and 11,415.80

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Solution

The fourth proportional to 28,046.72, 42,094.56 and 11,415.80 is: 17,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,046.72 : 42,094.56 = 11,415.80 : x
  2. Step 2: Convert to fraction form
    28,046.72/42,094.56 = 11,415.80/x
  3. Step 3: Cross multiply
    28,046.72x = 42,094.56 × 11,415.80
  4. Step 4: Simplify right side
    28,046.72x = 480,543,078.05
  5. Step 5: Solve for x
    x = 480,543,078.05/28,046.72
  6. Step 6: Final answer
    x = 17,133.66

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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.