Home / 33,137.28-45,724.14-18,987.48

Finding the Fourth Proportional to 33,137.28, 45,724.14 and 18,987.48

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Solution

The fourth proportional to 33,137.28, 45,724.14 and 18,987.48 is: 26,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,137.28 : 45,724.14 = 18,987.48 : x
  2. Step 2: Convert to fraction form
    33,137.28/45,724.14 = 18,987.48/x
  3. Step 3: Cross multiply
    33,137.28x = 45,724.14 × 18,987.48
  4. Step 4: Simplify right side
    33,137.28x = 868,186,193.77
  5. Step 5: Solve for x
    x = 868,186,193.77/33,137.28
  6. Step 6: Final answer
    x = 26,199.68

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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.