Home / 39,821.23-54,952.86-27,880.21

Finding the Fourth Proportional to 39,821.23, 54,952.86 and 27,880.21

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Solution

The fourth proportional to 39,821.23, 54,952.86 and 27,880.21 is: 38,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,821.23 : 54,952.86 = 27,880.21 : x
  2. Step 2: Convert to fraction form
    39,821.23/54,952.86 = 27,880.21/x
  3. Step 3: Cross multiply
    39,821.23x = 54,952.86 × 27,880.21
  4. Step 4: Simplify right side
    39,821.23x = 1,532,097,276.90
  5. Step 5: Solve for x
    x = 1,532,097,276.90/39,821.23
  6. Step 6: Final answer
    x = 38,474.38

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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.