Home / 38,289.78-52,839.33-21,522.66

Finding the Fourth Proportional to 38,289.78, 52,839.33 and 21,522.66

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Solution

The fourth proportional to 38,289.78, 52,839.33 and 21,522.66 is: 29,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,289.78 : 52,839.33 = 21,522.66 : x
  2. Step 2: Convert to fraction form
    38,289.78/52,839.33 = 21,522.66/x
  3. Step 3: Cross multiply
    38,289.78x = 52,839.33 × 21,522.66
  4. Step 4: Simplify right side
    38,289.78x = 1,137,242,934.22
  5. Step 5: Solve for x
    x = 1,137,242,934.22/38,289.78
  6. Step 6: Final answer
    x = 29,700.95

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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.