Home / 39,431.93-54,416.88-21,527.69

Finding the Fourth Proportional to 39,431.93, 54,416.88 and 21,527.69

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Solution

The fourth proportional to 39,431.93, 54,416.88 and 21,527.69 is: 29,708.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.93 : 54,416.88 = 21,527.69 : x
  2. Step 2: Convert to fraction form
    39,431.93/54,416.88 = 21,527.69/x
  3. Step 3: Cross multiply
    39,431.93x = 54,416.88 × 21,527.69
  4. Step 4: Simplify right side
    39,431.93x = 1,171,469,451.32
  5. Step 5: Solve for x
    x = 1,171,469,451.32/39,431.93
  6. Step 6: Final answer
    x = 29,708.65

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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.