Home / 39,590.52-54,634.88-21,685.56

Finding the Fourth Proportional to 39,590.52, 54,634.88 and 21,685.56

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Solution

The fourth proportional to 39,590.52, 54,634.88 and 21,685.56 is: 29,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,590.52 : 54,634.88 = 21,685.56 : x
  2. Step 2: Convert to fraction form
    39,590.52/54,634.88 = 21,685.56/x
  3. Step 3: Cross multiply
    39,590.52x = 54,634.88 × 21,685.56
  4. Step 4: Simplify right side
    39,590.52x = 1,184,787,859.91
  5. Step 5: Solve for x
    x = 1,184,787,859.91/39,590.52
  6. Step 6: Final answer
    x = 29,926.05

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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.