Home / 31,337.97-43,221.96-19,407.93

Finding the Fourth Proportional to 31,337.97, 43,221.96 and 19,407.93

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Solution

The fourth proportional to 31,337.97, 43,221.96 and 19,407.93 is: 26,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,337.97 : 43,221.96 = 19,407.93 : x
  2. Step 2: Convert to fraction form
    31,337.97/43,221.96 = 19,407.93/x
  3. Step 3: Cross multiply
    31,337.97x = 43,221.96 × 19,407.93
  4. Step 4: Simplify right side
    31,337.97x = 838,848,774.14
  5. Step 5: Solve for x
    x = 838,848,774.14/31,337.97
  6. Step 6: Final answer
    x = 26,767.81

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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.