Home / 31,188.29-43,027.63-19,230.86

Finding the Fourth Proportional to 31,188.29, 43,027.63 and 19,230.86

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Solution

The fourth proportional to 31,188.29, 43,027.63 and 19,230.86 is: 26,531.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,188.29 : 43,027.63 = 19,230.86 : x
  2. Step 2: Convert to fraction form
    31,188.29/43,027.63 = 19,230.86/x
  3. Step 3: Cross multiply
    31,188.29x = 43,027.63 × 19,230.86
  4. Step 4: Simplify right side
    31,188.29x = 827,458,388.15
  5. Step 5: Solve for x
    x = 827,458,388.15/31,188.29
  6. Step 6: Final answer
    x = 26,531.06

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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.