Home / 20,460.73-30,669-9,908.41

Finding the Fourth Proportional to 20,460.73, 30,669 and 9,908.41

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Solution

The fourth proportional to 20,460.73, 30,669 and 9,908.41 is: 14,851.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.73 : 30,669 = 9,908.41 : x
  2. Step 2: Convert to fraction form
    20,460.73/30,669 = 9,908.41/x
  3. Step 3: Cross multiply
    20,460.73x = 30,669 × 9,908.41
  4. Step 4: Simplify right side
    20,460.73x = 303,881,026.29
  5. Step 5: Solve for x
    x = 303,881,026.29/20,460.73
  6. Step 6: Final answer
    x = 14,851.92

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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.