Home / 39,786.88-59,644.68-16,398.40

Finding the Fourth Proportional to 39,786.88, 59,644.68 and 16,398.40

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Solution

The fourth proportional to 39,786.88, 59,644.68 and 16,398.40 is: 24,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.88 : 59,644.68 = 16,398.40 : x
  2. Step 2: Convert to fraction form
    39,786.88/59,644.68 = 16,398.40/x
  3. Step 3: Cross multiply
    39,786.88x = 59,644.68 × 16,398.40
  4. Step 4: Simplify right side
    39,786.88x = 978,077,320.51
  5. Step 5: Solve for x
    x = 978,077,320.51/39,786.88
  6. Step 6: Final answer
    x = 24,582.91

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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.