Home / 39,862.46-55,010.33-21,957.42

Finding the Fourth Proportional to 39,862.46, 55,010.33 and 21,957.42

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Solution

The fourth proportional to 39,862.46, 55,010.33 and 21,957.42 is: 30,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,862.46 : 55,010.33 = 21,957.42 : x
  2. Step 2: Convert to fraction form
    39,862.46/55,010.33 = 21,957.42/x
  3. Step 3: Cross multiply
    39,862.46x = 55,010.33 × 21,957.42
  4. Step 4: Simplify right side
    39,862.46x = 1,207,884,810.36
  5. Step 5: Solve for x
    x = 1,207,884,810.36/39,862.46
  6. Step 6: Final answer
    x = 30,301.32

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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.