Home / 28,405.05-39,201.89-17,078.24

Finding the Fourth Proportional to 28,405.05, 39,201.89 and 17,078.24

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Solution

The fourth proportional to 28,405.05, 39,201.89 and 17,078.24 is: 23,569.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.05 : 39,201.89 = 17,078.24 : x
  2. Step 2: Convert to fraction form
    28,405.05/39,201.89 = 17,078.24/x
  3. Step 3: Cross multiply
    28,405.05x = 39,201.89 × 17,078.24
  4. Step 4: Simplify right side
    28,405.05x = 669,499,004.47
  5. Step 5: Solve for x
    x = 669,499,004.47/28,405.05
  6. Step 6: Final answer
    x = 23,569.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.