Home / 16,921.79-25,380.85-4,443.06

Finding the Fourth Proportional to 16,921.79, 25,380.85 and 4,443.06

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Solution

The fourth proportional to 16,921.79, 25,380.85 and 4,443.06 is: 6,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.79 : 25,380.85 = 4,443.06 : x
  2. Step 2: Convert to fraction form
    16,921.79/25,380.85 = 4,443.06/x
  3. Step 3: Cross multiply
    16,921.79x = 25,380.85 × 4,443.06
  4. Step 4: Simplify right side
    16,921.79x = 112,768,639.40
  5. Step 5: Solve for x
    x = 112,768,639.40/16,921.79
  6. Step 6: Final answer
    x = 6,664.11

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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.