Home / 31,739.29-43,798.71-18,314.86

Finding the Fourth Proportional to 31,739.29, 43,798.71 and 18,314.86

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Solution

The fourth proportional to 31,739.29, 43,798.71 and 18,314.86 is: 25,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.29 : 43,798.71 = 18,314.86 : x
  2. Step 2: Convert to fraction form
    31,739.29/43,798.71 = 18,314.86/x
  3. Step 3: Cross multiply
    31,739.29x = 43,798.71 × 18,314.86
  4. Step 4: Simplify right side
    31,739.29x = 802,167,241.83
  5. Step 5: Solve for x
    x = 802,167,241.83/31,739.29
  6. Step 6: Final answer
    x = 25,273.64

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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.