Home / 33,127.18-45,725.78-20,384.26

Finding the Fourth Proportional to 33,127.18, 45,725.78 and 20,384.26

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Solution

The fourth proportional to 33,127.18, 45,725.78 and 20,384.26 is: 28,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,127.18 : 45,725.78 = 20,384.26 : x
  2. Step 2: Convert to fraction form
    33,127.18/45,725.78 = 20,384.26/x
  3. Step 3: Cross multiply
    33,127.18x = 45,725.78 × 20,384.26
  4. Step 4: Simplify right side
    33,127.18x = 932,086,188.22
  5. Step 5: Solve for x
    x = 932,086,188.22/33,127.18
  6. Step 6: Final answer
    x = 28,136.60

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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.