Home / 71,498.03-107,238.74-18,911.61

Finding the Fourth Proportional to 71,498.03, 107,238.74 and 18,911.61

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Solution

The fourth proportional to 71,498.03, 107,238.74 and 18,911.61 is: 28,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,498.03 : 107,238.74 = 18,911.61 : x
  2. Step 2: Convert to fraction form
    71,498.03/107,238.74 = 18,911.61/x
  3. Step 3: Cross multiply
    71,498.03x = 107,238.74 × 18,911.61
  4. Step 4: Simplify right side
    71,498.03x = 2,028,057,133.21
  5. Step 5: Solve for x
    x = 2,028,057,133.21/71,498.03
  6. Step 6: Final answer
    x = 28,365.22

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1.5x scale

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.