Home / 39,825.02-54,957.33-21,920.04

Finding the Fourth Proportional to 39,825.02, 54,957.33 and 21,920.04

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Solution

The fourth proportional to 39,825.02, 54,957.33 and 21,920.04 is: 30,249.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.02 : 54,957.33 = 21,920.04 : x
  2. Step 2: Convert to fraction form
    39,825.02/54,957.33 = 21,920.04/x
  3. Step 3: Cross multiply
    39,825.02x = 54,957.33 × 21,920.04
  4. Step 4: Simplify right side
    39,825.02x = 1,204,666,871.89
  5. Step 5: Solve for x
    x = 1,204,666,871.89/39,825.02
  6. Step 6: Final answer
    x = 30,249.00

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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.