Home / 33,126.93-45,715.17-18,987.99

Finding the Fourth Proportional to 33,126.93, 45,715.17 and 18,987.99

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Solution

The fourth proportional to 33,126.93, 45,715.17 and 18,987.99 is: 26,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,126.93 : 45,715.17 = 18,987.99 : x
  2. Step 2: Convert to fraction form
    33,126.93/45,715.17 = 18,987.99/x
  3. Step 3: Cross multiply
    33,126.93x = 45,715.17 × 18,987.99
  4. Step 4: Simplify right side
    33,126.93x = 868,039,190.81
  5. Step 5: Solve for x
    x = 868,039,190.81/33,126.93
  6. Step 6: Final answer
    x = 26,203.43

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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.