Home / 39,434.07-54,419.84-21,529.83

Finding the Fourth Proportional to 39,434.07, 54,419.84 and 21,529.83

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Solution

The fourth proportional to 39,434.07, 54,419.84 and 21,529.83 is: 29,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,434.07 : 54,419.84 = 21,529.83 : x
  2. Step 2: Convert to fraction form
    39,434.07/54,419.84 = 21,529.83/x
  3. Step 3: Cross multiply
    39,434.07x = 54,419.84 × 21,529.83
  4. Step 4: Simplify right side
    39,434.07x = 1,171,649,524.08
  5. Step 5: Solve for x
    x = 1,171,649,524.08/39,434.07
  6. Step 6: Final answer
    x = 29,711.61

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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.