Home / 39,220.56-54,122.76-22,451.28

Finding the Fourth Proportional to 39,220.56, 54,122.76 and 22,451.28

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Solution

The fourth proportional to 39,220.56, 54,122.76 and 22,451.28 is: 30,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,220.56 : 54,122.76 = 22,451.28 : x
  2. Step 2: Convert to fraction form
    39,220.56/54,122.76 = 22,451.28/x
  3. Step 3: Cross multiply
    39,220.56x = 54,122.76 × 22,451.28
  4. Step 4: Simplify right side
    39,220.56x = 1,215,125,239.13
  5. Step 5: Solve for x
    x = 1,215,125,239.13/39,220.56
  6. Step 6: Final answer
    x = 30,981.84

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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.