Home / 28,655.36-42,995.76-11,126.52

Finding the Fourth Proportional to 28,655.36, 42,995.76 and 11,126.52

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Solution

The fourth proportional to 28,655.36, 42,995.76 and 11,126.52 is: 16,694.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,655.36 : 42,995.76 = 11,126.52 : x
  2. Step 2: Convert to fraction form
    28,655.36/42,995.76 = 11,126.52/x
  3. Step 3: Cross multiply
    28,655.36x = 42,995.76 × 11,126.52
  4. Step 4: Simplify right side
    28,655.36x = 478,393,183.56
  5. Step 5: Solve for x
    x = 478,393,183.56/28,655.36
  6. Step 6: Final answer
    x = 16,694.72

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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.