Home / 38,157.72-52,652.64-21,161.76

Finding the Fourth Proportional to 38,157.72, 52,652.64 and 21,161.76

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Solution

The fourth proportional to 38,157.72, 52,652.64 and 21,161.76 is: 29,200.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,157.72 : 52,652.64 = 21,161.76 : x
  2. Step 2: Convert to fraction form
    38,157.72/52,652.64 = 21,161.76/x
  3. Step 3: Cross multiply
    38,157.72x = 52,652.64 × 21,161.76
  4. Step 4: Simplify right side
    38,157.72x = 1,114,222,531.05
  5. Step 5: Solve for x
    x = 1,114,222,531.05/38,157.72
  6. Step 6: Final answer
    x = 29,200.45

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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.