Home / 39,857.12-55,003.19-21,952.19

Finding the Fourth Proportional to 39,857.12, 55,003.19 and 21,952.19

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Solution

The fourth proportional to 39,857.12, 55,003.19 and 21,952.19 is: 30,294.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857.12 : 55,003.19 = 21,952.19 : x
  2. Step 2: Convert to fraction form
    39,857.12/55,003.19 = 21,952.19/x
  3. Step 3: Cross multiply
    39,857.12x = 55,003.19 × 21,952.19
  4. Step 4: Simplify right side
    39,857.12x = 1,207,440,092.71
  5. Step 5: Solve for x
    x = 1,207,440,092.71/39,857.12
  6. Step 6: Final answer
    x = 30,294.22

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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.