Home / 27,942.90-38,551.40-15,841.61

Finding the Fourth Proportional to 27,942.90, 38,551.40 and 15,841.61

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Solution

The fourth proportional to 27,942.90, 38,551.40 and 15,841.61 is: 21,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,942.90 : 38,551.40 = 15,841.61 : x
  2. Step 2: Convert to fraction form
    27,942.90/38,551.40 = 15,841.61/x
  3. Step 3: Cross multiply
    27,942.90x = 38,551.40 × 15,841.61
  4. Step 4: Simplify right side
    27,942.90x = 610,716,051.00
  5. Step 5: Solve for x
    x = 610,716,051.00/27,942.90
  6. Step 6: Final answer
    x = 21,855.86

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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.