Home / 31,611.84-43,605.06-20,277.52

Finding the Fourth Proportional to 31,611.84, 43,605.06 and 20,277.52

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Solution

The fourth proportional to 31,611.84, 43,605.06 and 20,277.52 is: 27,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.84 : 43,605.06 = 20,277.52 : x
  2. Step 2: Convert to fraction form
    31,611.84/43,605.06 = 20,277.52/x
  3. Step 3: Cross multiply
    31,611.84x = 43,605.06 × 20,277.52
  4. Step 4: Simplify right side
    31,611.84x = 884,202,476.25
  5. Step 5: Solve for x
    x = 884,202,476.25/31,611.84
  6. Step 6: Final answer
    x = 27,970.61

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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.