Home / 38,257.61-52,794.45-21,261.78

Finding the Fourth Proportional to 38,257.61, 52,794.45 and 21,261.78

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Solution

The fourth proportional to 38,257.61, 52,794.45 and 21,261.78 is: 29,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,257.61 : 52,794.45 = 21,261.78 : x
  2. Step 2: Convert to fraction form
    38,257.61/52,794.45 = 21,261.78/x
  3. Step 3: Cross multiply
    38,257.61x = 52,794.45 × 21,261.78
  4. Step 4: Simplify right side
    38,257.61x = 1,122,503,981.12
  5. Step 5: Solve for x
    x = 1,122,503,981.12/38,257.61
  6. Step 6: Final answer
    x = 29,340.68

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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.