Home / 27,801.60-38,368.96-15,866.73

Finding the Fourth Proportional to 27,801.60, 38,368.96 and 15,866.73

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Solution

The fourth proportional to 27,801.60, 38,368.96 and 15,866.73 is: 21,897.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.60 : 38,368.96 = 15,866.73 : x
  2. Step 2: Convert to fraction form
    27,801.60/38,368.96 = 15,866.73/x
  3. Step 3: Cross multiply
    27,801.60x = 38,368.96 × 15,866.73
  4. Step 4: Simplify right side
    27,801.60x = 608,789,745.15
  5. Step 5: Solve for x
    x = 608,789,745.15/27,801.60
  6. Step 6: Final answer
    x = 21,897.65

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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.