Home / 38,520.08-53,157.06-21,524.57

Finding the Fourth Proportional to 38,520.08, 53,157.06 and 21,524.57

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Solution

The fourth proportional to 38,520.08, 53,157.06 and 21,524.57 is: 29,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.08 : 53,157.06 = 21,524.57 : x
  2. Step 2: Convert to fraction form
    38,520.08/53,157.06 = 21,524.57/x
  3. Step 3: Cross multiply
    38,520.08x = 53,157.06 × 21,524.57
  4. Step 4: Simplify right side
    38,520.08x = 1,144,182,858.96
  5. Step 5: Solve for x
    x = 1,144,182,858.96/38,520.08
  6. Step 6: Final answer
    x = 29,703.54

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Half scale
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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.