Home / 39,862.63-55,008.41-21,957.24

Finding the Fourth Proportional to 39,862.63, 55,008.41 and 21,957.24

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Solution

The fourth proportional to 39,862.63, 55,008.41 and 21,957.24 is: 30,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.63 : 55,008.41 = 21,957.24 : x
  2. Step 2: Convert to fraction form
    39,862.63/55,008.41 = 21,957.24/x
  3. Step 3: Cross multiply
    39,862.63x = 55,008.41 × 21,957.24
  4. Step 4: Simplify right side
    39,862.63x = 1,207,832,860.39
  5. Step 5: Solve for x
    x = 1,207,832,860.39/39,862.63
  6. Step 6: Final answer
    x = 30,299.88

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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.