Home / 28,258.64-42,289.84-17,580.61

Finding the Fourth Proportional to 28,258.64, 42,289.84 and 17,580.61

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Solution

The fourth proportional to 28,258.64, 42,289.84 and 17,580.61 is: 26,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.64 : 42,289.84 = 17,580.61 : x
  2. Step 2: Convert to fraction form
    28,258.64/42,289.84 = 17,580.61/x
  3. Step 3: Cross multiply
    28,258.64x = 42,289.84 × 17,580.61
  4. Step 4: Simplify right side
    28,258.64x = 743,481,184.00
  5. Step 5: Solve for x
    x = 743,481,184.00/28,258.64
  6. Step 6: Final answer
    x = 26,309.87

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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.