Home / 31,270.03-43,159.34-19,936.92

Finding the Fourth Proportional to 31,270.03, 43,159.34 and 19,936.92

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Solution

The fourth proportional to 31,270.03, 43,159.34 and 19,936.92 is: 27,517.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.03 : 43,159.34 = 19,936.92 : x
  2. Step 2: Convert to fraction form
    31,270.03/43,159.34 = 19,936.92/x
  3. Step 3: Cross multiply
    31,270.03x = 43,159.34 × 19,936.92
  4. Step 4: Simplify right side
    31,270.03x = 860,464,196.83
  5. Step 5: Solve for x
    x = 860,464,196.83/31,270.03
  6. Step 6: Final answer
    x = 27,517.22

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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.