Home / 28,905.38-39,877.62-22,913

Finding the Fourth Proportional to 28,905.38, 39,877.62 and 22,913

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Solution

The fourth proportional to 28,905.38, 39,877.62 and 22,913 is: 31,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.38 : 39,877.62 = 22,913 : x
  2. Step 2: Convert to fraction form
    28,905.38/39,877.62 = 22,913/x
  3. Step 3: Cross multiply
    28,905.38x = 39,877.62 × 22,913
  4. Step 4: Simplify right side
    28,905.38x = 913,715,907.06
  5. Step 5: Solve for x
    x = 913,715,907.06/28,905.38
  6. Step 6: Final answer
    x = 31,610.58

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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.