Home / 39,153.42-54,034.38-22,157.64

Finding the Fourth Proportional to 39,153.42, 54,034.38 and 22,157.64

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Solution

The fourth proportional to 39,153.42, 54,034.38 and 22,157.64 is: 30,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,153.42 : 54,034.38 = 22,157.64 : x
  2. Step 2: Convert to fraction form
    39,153.42/54,034.38 = 22,157.64/x
  3. Step 3: Cross multiply
    39,153.42x = 54,034.38 × 22,157.64
  4. Step 4: Simplify right side
    39,153.42x = 1,197,274,339.66
  5. Step 5: Solve for x
    x = 1,197,274,339.66/39,153.42
  6. Step 6: Final answer
    x = 30,579.05

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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.