Home / 39,655.53-54,728.14-21,754.02

Finding the Fourth Proportional to 39,655.53, 54,728.14 and 21,754.02

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Solution

The fourth proportional to 39,655.53, 54,728.14 and 21,754.02 is: 30,022.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,655.53 : 54,728.14 = 21,754.02 : x
  2. Step 2: Convert to fraction form
    39,655.53/54,728.14 = 21,754.02/x
  3. Step 3: Cross multiply
    39,655.53x = 54,728.14 × 21,754.02
  4. Step 4: Simplify right side
    39,655.53x = 1,190,556,943.35
  5. Step 5: Solve for x
    x = 1,190,556,943.35/39,655.53
  6. Step 6: Final answer
    x = 30,022.47

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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.