Home / 28,407.38-42,619.91-11,775.24

Finding the Fourth Proportional to 28,407.38, 42,619.91 and 11,775.24

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Solution

The fourth proportional to 28,407.38, 42,619.91 and 11,775.24 is: 17,666.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.38 : 42,619.91 = 11,775.24 : x
  2. Step 2: Convert to fraction form
    28,407.38/42,619.91 = 11,775.24/x
  3. Step 3: Cross multiply
    28,407.38x = 42,619.91 × 11,775.24
  4. Step 4: Simplify right side
    28,407.38x = 501,859,610.15
  5. Step 5: Solve for x
    x = 501,859,610.15/28,407.38
  6. Step 6: Final answer
    x = 17,666.53

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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.