Home / 31,092.88-42,907.68-16,945.84

Finding the Fourth Proportional to 31,092.88, 42,907.68 and 16,945.84

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Solution

The fourth proportional to 31,092.88, 42,907.68 and 16,945.84 is: 23,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,092.88 : 42,907.68 = 16,945.84 : x
  2. Step 2: Convert to fraction form
    31,092.88/42,907.68 = 16,945.84/x
  3. Step 3: Cross multiply
    31,092.88x = 42,907.68 × 16,945.84
  4. Step 4: Simplify right side
    31,092.88x = 727,106,680.05
  5. Step 5: Solve for x
    x = 727,106,680.05/31,092.88
  6. Step 6: Final answer
    x = 23,384.99

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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.