Home / 26,486.97-39,693.54-19,905.45

Finding the Fourth Proportional to 26,486.97, 39,693.54 and 19,905.45

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Solution

The fourth proportional to 26,486.97, 39,693.54 and 19,905.45 is: 29,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,486.97 : 39,693.54 = 19,905.45 : x
  2. Step 2: Convert to fraction form
    26,486.97/39,693.54 = 19,905.45/x
  3. Step 3: Cross multiply
    26,486.97x = 39,693.54 × 19,905.45
  4. Step 4: Simplify right side
    26,486.97x = 790,117,775.79
  5. Step 5: Solve for x
    x = 790,117,775.79/26,486.97
  6. Step 6: Final answer
    x = 29,830.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.