Home / 33,127.68-45,726.47-20,384.76

Finding the Fourth Proportional to 33,127.68, 45,726.47 and 20,384.76

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Solution

The fourth proportional to 33,127.68, 45,726.47 and 20,384.76 is: 28,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,127.68 : 45,726.47 = 20,384.76 : x
  2. Step 2: Convert to fraction form
    33,127.68/45,726.47 = 20,384.76/x
  3. Step 3: Cross multiply
    33,127.68x = 45,726.47 × 20,384.76
  4. Step 4: Simplify right side
    33,127.68x = 932,123,116.60
  5. Step 5: Solve for x
    x = 932,123,116.60/33,127.68
  6. Step 6: Final answer
    x = 28,137.29

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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.