Home / 20,722.64-31,083.62-5,929.61

Finding the Fourth Proportional to 20,722.64, 31,083.62 and 5,929.61

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Solution

The fourth proportional to 20,722.64, 31,083.62 and 5,929.61 is: 8,894.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.64 : 31,083.62 = 5,929.61 : x
  2. Step 2: Convert to fraction form
    20,722.64/31,083.62 = 5,929.61/x
  3. Step 3: Cross multiply
    20,722.64x = 31,083.62 × 5,929.61
  4. Step 4: Simplify right side
    20,722.64x = 184,313,558.92
  5. Step 5: Solve for x
    x = 184,313,558.92/20,722.64
  6. Step 6: Final answer
    x = 8,894.31

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1.5x scale

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.