Home / 36,439.23-54,622.31-12,728.37

Finding the Fourth Proportional to 36,439.23, 54,622.31 and 12,728.37

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Solution

The fourth proportional to 36,439.23, 54,622.31 and 12,728.37 is: 19,079.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,439.23 : 54,622.31 = 12,728.37 : x
  2. Step 2: Convert to fraction form
    36,439.23/54,622.31 = 12,728.37/x
  3. Step 3: Cross multiply
    36,439.23x = 54,622.31 × 12,728.37
  4. Step 4: Simplify right side
    36,439.23x = 695,252,908.29
  5. Step 5: Solve for x
    x = 695,252,908.29/36,439.23
  6. Step 6: Final answer
    x = 19,079.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.