Home / 39,786.52-59,686.62-16,400.20

Finding the Fourth Proportional to 39,786.52, 59,686.62 and 16,400.20

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Solution

The fourth proportional to 39,786.52, 59,686.62 and 16,400.20 is: 24,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.52 : 59,686.62 = 16,400.20 : x
  2. Step 2: Convert to fraction form
    39,786.52/59,686.62 = 16,400.20/x
  3. Step 3: Cross multiply
    39,786.52x = 59,686.62 × 16,400.20
  4. Step 4: Simplify right side
    39,786.52x = 978,872,505.32
  5. Step 5: Solve for x
    x = 978,872,505.32/39,786.52
  6. Step 6: Final answer
    x = 24,603.12

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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.