Home / 19,693.86-27,187.56-15,207.54

Finding the Fourth Proportional to 19,693.86, 27,187.56 and 15,207.54

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Solution

The fourth proportional to 19,693.86, 27,187.56 and 15,207.54 is: 20,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.86 : 27,187.56 = 15,207.54 : x
  2. Step 2: Convert to fraction form
    19,693.86/27,187.56 = 15,207.54/x
  3. Step 3: Cross multiply
    19,693.86x = 27,187.56 × 15,207.54
  4. Step 4: Simplify right side
    19,693.86x = 413,455,906.20
  5. Step 5: Solve for x
    x = 413,455,906.20/19,693.86
  6. Step 6: Final answer
    x = 20,994.15

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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.