Home / 38,691.72-58,054.01-21,141.05

Finding the Fourth Proportional to 38,691.72, 58,054.01 and 21,141.05

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Solution

The fourth proportional to 38,691.72, 58,054.01 and 21,141.05 is: 31,720.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.72 : 58,054.01 = 21,141.05 : x
  2. Step 2: Convert to fraction form
    38,691.72/58,054.01 = 21,141.05/x
  3. Step 3: Cross multiply
    38,691.72x = 58,054.01 × 21,141.05
  4. Step 4: Simplify right side
    38,691.72x = 1,227,322,332.14
  5. Step 5: Solve for x
    x = 1,227,322,332.14/38,691.72
  6. Step 6: Final answer
    x = 31,720.54

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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.