Home / 20,493.07-30,724.01-8,650.47

Finding the Fourth Proportional to 20,493.07, 30,724.01 and 8,650.47

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Solution

The fourth proportional to 20,493.07, 30,724.01 and 8,650.47 is: 12,969.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.07 : 30,724.01 = 8,650.47 : x
  2. Step 2: Convert to fraction form
    20,493.07/30,724.01 = 8,650.47/x
  3. Step 3: Cross multiply
    20,493.07x = 30,724.01 × 8,650.47
  4. Step 4: Simplify right side
    20,493.07x = 265,776,973.16
  5. Step 5: Solve for x
    x = 265,776,973.16/20,493.07
  6. Step 6: Final answer
    x = 12,969.11

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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.