Home / 31,092.30-42,907.26-16,945.11

Finding the Fourth Proportional to 31,092.30, 42,907.26 and 16,945.11

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Solution

The fourth proportional to 31,092.30, 42,907.26 and 16,945.11 is: 23,384.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,092.30 : 42,907.26 = 16,945.11 : x
  2. Step 2: Convert to fraction form
    31,092.30/42,907.26 = 16,945.11/x
  3. Step 3: Cross multiply
    31,092.30x = 42,907.26 × 16,945.11
  4. Step 4: Simplify right side
    31,092.30x = 727,068,240.50
  5. Step 5: Solve for x
    x = 727,068,240.50/31,092.30
  6. Step 6: Final answer
    x = 23,384.19

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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.