Home / 38,152.91-52,651.64-21,157.86

Finding the Fourth Proportional to 38,152.91, 52,651.64 and 21,157.86

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Solution

The fourth proportional to 38,152.91, 52,651.64 and 21,157.86 is: 29,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,152.91 : 52,651.64 = 21,157.86 : x
  2. Step 2: Convert to fraction form
    38,152.91/52,651.64 = 21,157.86/x
  3. Step 3: Cross multiply
    38,152.91x = 52,651.64 × 21,157.86
  4. Step 4: Simplify right side
    38,152.91x = 1,113,995,863.05
  5. Step 5: Solve for x
    x = 1,113,995,863.05/38,152.91
  6. Step 6: Final answer
    x = 29,198.19

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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.