Home / 39,754.68-54,862.51-21,850.16

Finding the Fourth Proportional to 39,754.68, 54,862.51 and 21,850.16

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Solution

The fourth proportional to 39,754.68, 54,862.51 and 21,850.16 is: 30,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.68 : 54,862.51 = 21,850.16 : x
  2. Step 2: Convert to fraction form
    39,754.68/54,862.51 = 21,850.16/x
  3. Step 3: Cross multiply
    39,754.68x = 54,862.51 × 21,850.16
  4. Step 4: Simplify right side
    39,754.68x = 1,198,754,621.50
  5. Step 5: Solve for x
    x = 1,198,754,621.50/39,754.68
  6. Step 6: Final answer
    x = 30,153.80

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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.