Home / 31,716-43,768.08-19,140.75

Finding the Fourth Proportional to 31,716, 43,768.08 and 19,140.75

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Solution

The fourth proportional to 31,716, 43,768.08 and 19,140.75 is: 26,414.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716 : 43,768.08 = 19,140.75 : x
  2. Step 2: Convert to fraction form
    31,716/43,768.08 = 19,140.75/x
  3. Step 3: Cross multiply
    31,716x = 43,768.08 × 19,140.75
  4. Step 4: Simplify right side
    31,716x = 837,753,877.26
  5. Step 5: Solve for x
    x = 837,753,877.26/31,716
  6. Step 6: Final answer
    x = 26,414.24

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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.