Home / 38,174.48-52,680.86-21,178.72

Finding the Fourth Proportional to 38,174.48, 52,680.86 and 21,178.72

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Solution

The fourth proportional to 38,174.48, 52,680.86 and 21,178.72 is: 29,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,174.48 : 52,680.86 = 21,178.72 : x
  2. Step 2: Convert to fraction form
    38,174.48/52,680.86 = 21,178.72/x
  3. Step 3: Cross multiply
    38,174.48x = 52,680.86 × 21,178.72
  4. Step 4: Simplify right side
    38,174.48x = 1,115,713,183.30
  5. Step 5: Solve for x
    x = 1,115,713,183.30/38,174.48
  6. Step 6: Final answer
    x = 29,226.68

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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.