Home / 30,239.97-41,731.11-16,812.47

Finding the Fourth Proportional to 30,239.97, 41,731.11 and 16,812.47

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Solution

The fourth proportional to 30,239.97, 41,731.11 and 16,812.47 is: 23,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,239.97 : 41,731.11 = 16,812.47 : x
  2. Step 2: Convert to fraction form
    30,239.97/41,731.11 = 16,812.47/x
  3. Step 3: Cross multiply
    30,239.97x = 41,731.11 × 16,812.47
  4. Step 4: Simplify right side
    30,239.97x = 701,602,826.29
  5. Step 5: Solve for x
    x = 701,602,826.29/30,239.97
  6. Step 6: Final answer
    x = 23,201.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.