Home / 39,814.95-54,943.24-21,908.28

Finding the Fourth Proportional to 39,814.95, 54,943.24 and 21,908.28

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Solution

The fourth proportional to 39,814.95, 54,943.24 and 21,908.28 is: 30,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,814.95 : 54,943.24 = 21,908.28 : x
  2. Step 2: Convert to fraction form
    39,814.95/54,943.24 = 21,908.28/x
  3. Step 3: Cross multiply
    39,814.95x = 54,943.24 × 21,908.28
  4. Step 4: Simplify right side
    39,814.95x = 1,203,711,886.03
  5. Step 5: Solve for x
    x = 1,203,711,886.03/39,814.95
  6. Step 6: Final answer
    x = 30,232.66

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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.