Home / 39,211.26-54,109.80-22,215.18

Finding the Fourth Proportional to 39,211.26, 54,109.80 and 22,215.18

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Solution

The fourth proportional to 39,211.26, 54,109.80 and 22,215.18 is: 30,655.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,211.26 : 54,109.80 = 22,215.18 : x
  2. Step 2: Convert to fraction form
    39,211.26/54,109.80 = 22,215.18/x
  3. Step 3: Cross multiply
    39,211.26x = 54,109.80 × 22,215.18
  4. Step 4: Simplify right side
    39,211.26x = 1,202,058,946.76
  5. Step 5: Solve for x
    x = 1,202,058,946.76/39,211.26
  6. Step 6: Final answer
    x = 30,655.96

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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.