Home / 39,261.40-54,180.49-21,356.48

Finding the Fourth Proportional to 39,261.40, 54,180.49 and 21,356.48

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Solution

The fourth proportional to 39,261.40, 54,180.49 and 21,356.48 is: 29,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.40 : 54,180.49 = 21,356.48 : x
  2. Step 2: Convert to fraction form
    39,261.40/54,180.49 = 21,356.48/x
  3. Step 3: Cross multiply
    39,261.40x = 54,180.49 × 21,356.48
  4. Step 4: Simplify right side
    39,261.40x = 1,157,104,353.40
  5. Step 5: Solve for x
    x = 1,157,104,353.40/39,261.40
  6. Step 6: Final answer
    x = 29,471.81

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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.