Home / 31,064.24-42,868.35-16,917.32

Finding the Fourth Proportional to 31,064.24, 42,868.35 and 16,917.32

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Solution

The fourth proportional to 31,064.24, 42,868.35 and 16,917.32 is: 23,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.24 : 42,868.35 = 16,917.32 : x
  2. Step 2: Convert to fraction form
    31,064.24/42,868.35 = 16,917.32/x
  3. Step 3: Cross multiply
    31,064.24x = 42,868.35 × 16,917.32
  4. Step 4: Simplify right side
    31,064.24x = 725,217,380.48
  5. Step 5: Solve for x
    x = 725,217,380.48/31,064.24
  6. Step 6: Final answer
    x = 23,345.73

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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.