Home / 31,064.94-42,868.26-16,917.90

Finding the Fourth Proportional to 31,064.94, 42,868.26 and 16,917.90

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Solution

The fourth proportional to 31,064.94, 42,868.26 and 16,917.90 is: 23,345.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.94 : 42,868.26 = 16,917.90 : x
  2. Step 2: Convert to fraction form
    31,064.94/42,868.26 = 16,917.90/x
  3. Step 3: Cross multiply
    31,064.94x = 42,868.26 × 16,917.90
  4. Step 4: Simplify right side
    31,064.94x = 725,240,935.85
  5. Step 5: Solve for x
    x = 725,240,935.85/31,064.94
  6. Step 6: Final answer
    x = 23,345.96

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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.