Home / 39,585.96-54,628.16-21,680.73

Finding the Fourth Proportional to 39,585.96, 54,628.16 and 21,680.73

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Solution

The fourth proportional to 39,585.96, 54,628.16 and 21,680.73 is: 29,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.96 : 54,628.16 = 21,680.73 : x
  2. Step 2: Convert to fraction form
    39,585.96/54,628.16 = 21,680.73/x
  3. Step 3: Cross multiply
    39,585.96x = 54,628.16 × 21,680.73
  4. Step 4: Simplify right side
    39,585.96x = 1,184,378,278.95
  5. Step 5: Solve for x
    x = 1,184,378,278.95/39,585.96
  6. Step 6: Final answer
    x = 29,919.15

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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.