Home / 38,174.12-52,680.72-21,178.68

Finding the Fourth Proportional to 38,174.12, 52,680.72 and 21,178.68

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Solution

The fourth proportional to 38,174.12, 52,680.72 and 21,178.68 is: 29,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,174.12 : 52,680.72 = 21,178.68 : x
  2. Step 2: Convert to fraction form
    38,174.12/52,680.72 = 21,178.68/x
  3. Step 3: Cross multiply
    38,174.12x = 52,680.72 × 21,178.68
  4. Step 4: Simplify right side
    38,174.12x = 1,115,708,111.05
  5. Step 5: Solve for x
    x = 1,115,708,111.05/38,174.12
  6. Step 6: Final answer
    x = 29,226.82

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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.