Home / 31,107.24-42,928.02-16,960.14

Finding the Fourth Proportional to 31,107.24, 42,928.02 and 16,960.14

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Solution

The fourth proportional to 31,107.24, 42,928.02 and 16,960.14 is: 23,405.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.24 : 42,928.02 = 16,960.14 : x
  2. Step 2: Convert to fraction form
    31,107.24/42,928.02 = 16,960.14/x
  3. Step 3: Cross multiply
    31,107.24x = 42,928.02 × 16,960.14
  4. Step 4: Simplify right side
    31,107.24x = 728,065,229.12
  5. Step 5: Solve for x
    x = 728,065,229.12/31,107.24
  6. Step 6: Final answer
    x = 23,405.01

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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.