Home / 38,286.08-52,833.84-21,520.16

Finding the Fourth Proportional to 38,286.08, 52,833.84 and 21,520.16

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Solution

The fourth proportional to 38,286.08, 52,833.84 and 21,520.16 is: 29,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.08 : 52,833.84 = 21,520.16 : x
  2. Step 2: Convert to fraction form
    38,286.08/52,833.84 = 21,520.16/x
  3. Step 3: Cross multiply
    38,286.08x = 52,833.84 × 21,520.16
  4. Step 4: Simplify right side
    38,286.08x = 1,136,992,690.21
  5. Step 5: Solve for x
    x = 1,136,992,690.21/38,286.08
  6. Step 6: Final answer
    x = 29,697.29

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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.