Home / 38,286-52,837.92-21,522.24

Finding the Fourth Proportional to 38,286, 52,837.92 and 21,522.24

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Solution

The fourth proportional to 38,286, 52,837.92 and 21,522.24 is: 29,702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286 : 52,837.92 = 21,522.24 : x
  2. Step 2: Convert to fraction form
    38,286/52,837.92 = 21,522.24/x
  3. Step 3: Cross multiply
    38,286x = 52,837.92 × 21,522.24
  4. Step 4: Simplify right side
    38,286x = 1,137,190,395.34
  5. Step 5: Solve for x
    x = 1,137,190,395.34/38,286
  6. Step 6: Final answer
    x = 29,702.51

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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.