Home / 39,701.23-54,787.79-21,797.39

Finding the Fourth Proportional to 39,701.23, 54,787.79 and 21,797.39

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Solution

The fourth proportional to 39,701.23, 54,787.79 and 21,797.39 is: 30,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.23 : 54,787.79 = 21,797.39 : x
  2. Step 2: Convert to fraction form
    39,701.23/54,787.79 = 21,797.39/x
  3. Step 3: Cross multiply
    39,701.23x = 54,787.79 × 21,797.39
  4. Step 4: Simplify right side
    39,701.23x = 1,194,230,825.87
  5. Step 5: Solve for x
    x = 1,194,230,825.87/39,701.23
  6. Step 6: Final answer
    x = 30,080.45

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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.