Home / 33,136.64-45,722.88-18,990.08

Finding the Fourth Proportional to 33,136.64, 45,722.88 and 18,990.08

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Solution

The fourth proportional to 33,136.64, 45,722.88 and 18,990.08 is: 26,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,136.64 : 45,722.88 = 18,990.08 : x
  2. Step 2: Convert to fraction form
    33,136.64/45,722.88 = 18,990.08/x
  3. Step 3: Cross multiply
    33,136.64x = 45,722.88 × 18,990.08
  4. Step 4: Simplify right side
    33,136.64x = 868,281,149.03
  5. Step 5: Solve for x
    x = 868,281,149.03/33,136.64
  6. Step 6: Final answer
    x = 26,203.05

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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.