Home / 33,127.30-45,725.95-20,384.38

Finding the Fourth Proportional to 33,127.30, 45,725.95 and 20,384.38

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Solution

The fourth proportional to 33,127.30, 45,725.95 and 20,384.38 is: 28,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,127.30 : 45,725.95 = 20,384.38 : x
  2. Step 2: Convert to fraction form
    33,127.30/45,725.95 = 20,384.38/x
  3. Step 3: Cross multiply
    33,127.30x = 45,725.95 × 20,384.38
  4. Step 4: Simplify right side
    33,127.30x = 932,095,140.66
  5. Step 5: Solve for x
    x = 932,095,140.66/33,127.30
  6. Step 6: Final answer
    x = 28,136.77

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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.