Home / 39,780.64-59,673.30-16,399

Finding the Fourth Proportional to 39,780.64, 59,673.30 and 16,399

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Solution

The fourth proportional to 39,780.64, 59,673.30 and 16,399 is: 24,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.64 : 59,673.30 = 16,399 : x
  2. Step 2: Convert to fraction form
    39,780.64/59,673.30 = 16,399/x
  3. Step 3: Cross multiply
    39,780.64x = 59,673.30 × 16,399
  4. Step 4: Simplify right side
    39,780.64x = 978,582,446.70
  5. Step 5: Solve for x
    x = 978,582,446.70/39,780.64
  6. Step 6: Final answer
    x = 24,599.46

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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.