Home / 33,131.93-45,723.15-18,987.48

Finding the Fourth Proportional to 33,131.93, 45,723.15 and 18,987.48

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Solution

The fourth proportional to 33,131.93, 45,723.15 and 18,987.48 is: 26,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,131.93 : 45,723.15 = 18,987.48 : x
  2. Step 2: Convert to fraction form
    33,131.93/45,723.15 = 18,987.48/x
  3. Step 3: Cross multiply
    33,131.93x = 45,723.15 × 18,987.48
  4. Step 4: Simplify right side
    33,131.93x = 868,167,396.16
  5. Step 5: Solve for x
    x = 868,167,396.16/33,131.93
  6. Step 6: Final answer
    x = 26,203.35

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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.