Home / 39,283.72-54,231.62-30,311.08

Finding the Fourth Proportional to 39,283.72, 54,231.62 and 30,311.08

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Solution

The fourth proportional to 39,283.72, 54,231.62 and 30,311.08 is: 41,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,283.72 : 54,231.62 = 30,311.08 : x
  2. Step 2: Convert to fraction form
    39,283.72/54,231.62 = 30,311.08/x
  3. Step 3: Cross multiply
    39,283.72x = 54,231.62 × 30,311.08
  4. Step 4: Simplify right side
    39,283.72x = 1,643,818,972.35
  5. Step 5: Solve for x
    x = 1,643,818,972.35/39,283.72
  6. Step 6: Final answer
    x = 41,844.79

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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.