Home / 39,222.14-54,129.75-22,456.22

Finding the Fourth Proportional to 39,222.14, 54,129.75 and 22,456.22

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Solution

The fourth proportional to 39,222.14, 54,129.75 and 22,456.22 is: 30,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.14 : 54,129.75 = 22,456.22 : x
  2. Step 2: Convert to fraction form
    39,222.14/54,129.75 = 22,456.22/x
  3. Step 3: Cross multiply
    39,222.14x = 54,129.75 × 22,456.22
  4. Step 4: Simplify right side
    39,222.14x = 1,215,549,574.55
  5. Step 5: Solve for x
    x = 1,215,549,574.55/39,222.14
  6. Step 6: Final answer
    x = 30,991.41

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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.