Home / 20,005.89-30,039.66-16,926.36

Finding the Fourth Proportional to 20,005.89, 30,039.66 and 16,926.36

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Solution

The fourth proportional to 20,005.89, 30,039.66 and 16,926.36 is: 25,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.89 : 30,039.66 = 16,926.36 : x
  2. Step 2: Convert to fraction form
    20,005.89/30,039.66 = 16,926.36/x
  3. Step 3: Cross multiply
    20,005.89x = 30,039.66 × 16,926.36
  4. Step 4: Simplify right side
    20,005.89x = 508,462,099.44
  5. Step 5: Solve for x
    x = 508,462,099.44/20,005.89
  6. Step 6: Final answer
    x = 25,415.62

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1.5x scale

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.