Home / 40,044.49-55,261.78-21,895.76

Finding the Fourth Proportional to 40,044.49, 55,261.78 and 21,895.76

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Solution

The fourth proportional to 40,044.49, 55,261.78 and 21,895.76 is: 30,216.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,044.49 : 55,261.78 = 21,895.76 : x
  2. Step 2: Convert to fraction form
    40,044.49/55,261.78 = 21,895.76/x
  3. Step 3: Cross multiply
    40,044.49x = 55,261.78 × 21,895.76
  4. Step 4: Simplify right side
    40,044.49x = 1,209,998,755.47
  5. Step 5: Solve for x
    x = 1,209,998,755.47/40,044.49
  6. Step 6: Final answer
    x = 30,216.36

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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.