Home / 31,511.12-43,485.36-17,363.84

Finding the Fourth Proportional to 31,511.12, 43,485.36 and 17,363.84

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Solution

The fourth proportional to 31,511.12, 43,485.36 and 17,363.84 is: 23,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.12 : 43,485.36 = 17,363.84 : x
  2. Step 2: Convert to fraction form
    31,511.12/43,485.36 = 17,363.84/x
  3. Step 3: Cross multiply
    31,511.12x = 43,485.36 × 17,363.84
  4. Step 4: Simplify right side
    31,511.12x = 755,072,833.38
  5. Step 5: Solve for x
    x = 755,072,833.38/31,511.12
  6. Step 6: Final answer
    x = 23,962.11

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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.