Home / 38,138.40-52,632.36-22,220.28

Finding the Fourth Proportional to 38,138.40, 52,632.36 and 22,220.28

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Solution

The fourth proportional to 38,138.40, 52,632.36 and 22,220.28 is: 30,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,138.40 : 52,632.36 = 22,220.28 : x
  2. Step 2: Convert to fraction form
    38,138.40/52,632.36 = 22,220.28/x
  3. Step 3: Cross multiply
    38,138.40x = 52,632.36 × 22,220.28
  4. Step 4: Simplify right side
    38,138.40x = 1,169,505,776.26
  5. Step 5: Solve for x
    x = 1,169,505,776.26/38,138.40
  6. Step 6: Final answer
    x = 30,664.78

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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.