Home / 39,825.72-59,743.80-13,523.40

Finding the Fourth Proportional to 39,825.72, 59,743.80 and 13,523.40

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Solution

The fourth proportional to 39,825.72, 59,743.80 and 13,523.40 is: 20,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,825.72 : 59,743.80 = 13,523.40 : x
  2. Step 2: Convert to fraction form
    39,825.72/59,743.80 = 13,523.40/x
  3. Step 3: Cross multiply
    39,825.72x = 59,743.80 × 13,523.40
  4. Step 4: Simplify right side
    39,825.72x = 807,939,304.92
  5. Step 5: Solve for x
    x = 807,939,304.92/39,825.72
  6. Step 6: Final answer
    x = 20,286.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.