Home / 38,402.28-52,995.39-21,407.60

Finding the Fourth Proportional to 38,402.28, 52,995.39 and 21,407.60

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Solution

The fourth proportional to 38,402.28, 52,995.39 and 21,407.60 is: 29,542.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,402.28 : 52,995.39 = 21,407.60 : x
  2. Step 2: Convert to fraction form
    38,402.28/52,995.39 = 21,407.60/x
  3. Step 3: Cross multiply
    38,402.28x = 52,995.39 × 21,407.60
  4. Step 4: Simplify right side
    38,402.28x = 1,134,504,243.45
  5. Step 5: Solve for x
    x = 1,134,504,243.45/38,402.28
  6. Step 6: Final answer
    x = 29,542.63

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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.