Home / 38,028.88-52,480-21,261.84

Finding the Fourth Proportional to 38,028.88, 52,480 and 21,261.84

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Solution

The fourth proportional to 38,028.88, 52,480 and 21,261.84 is: 29,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,028.88 : 52,480 = 21,261.84 : x
  2. Step 2: Convert to fraction form
    38,028.88/52,480 = 21,261.84/x
  3. Step 3: Cross multiply
    38,028.88x = 52,480 × 21,261.84
  4. Step 4: Simplify right side
    38,028.88x = 1,115,821,363.20
  5. Step 5: Solve for x
    x = 1,115,821,363.20/38,028.88
  6. Step 6: Final answer
    x = 29,341.42

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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.