Home / 31,320.94-43,223.08-16,980.88

Finding the Fourth Proportional to 31,320.94, 43,223.08 and 16,980.88

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Solution

The fourth proportional to 31,320.94, 43,223.08 and 16,980.88 is: 23,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.94 : 43,223.08 = 16,980.88 : x
  2. Step 2: Convert to fraction form
    31,320.94/43,223.08 = 16,980.88/x
  3. Step 3: Cross multiply
    31,320.94x = 43,223.08 × 16,980.88
  4. Step 4: Simplify right side
    31,320.94x = 733,965,934.71
  5. Step 5: Solve for x
    x = 733,965,934.71/31,320.94
  6. Step 6: Final answer
    x = 23,433.71

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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.