Home / 15,787.90-23,665.83-13,483.61

Finding the Fourth Proportional to 15,787.90, 23,665.83 and 13,483.61

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Solution

The fourth proportional to 15,787.90, 23,665.83 and 13,483.61 is: 20,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.90 : 23,665.83 = 13,483.61 : x
  2. Step 2: Convert to fraction form
    15,787.90/23,665.83 = 13,483.61/x
  3. Step 3: Cross multiply
    15,787.90x = 23,665.83 × 13,483.61
  4. Step 4: Simplify right side
    15,787.90x = 319,100,746.54
  5. Step 5: Solve for x
    x = 319,100,746.54/15,787.90
  6. Step 6: Final answer
    x = 20,211.72

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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.