Home / 31,465.75-47,198.63-12,998.23

Finding the Fourth Proportional to 31,465.75, 47,198.63 and 12,998.23

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Solution

The fourth proportional to 31,465.75, 47,198.63 and 12,998.23 is: 19,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.75 : 47,198.63 = 12,998.23 : x
  2. Step 2: Convert to fraction form
    31,465.75/47,198.63 = 12,998.23/x
  3. Step 3: Cross multiply
    31,465.75x = 47,198.63 × 12,998.23
  4. Step 4: Simplify right side
    31,465.75x = 613,498,648.42
  5. Step 5: Solve for x
    x = 613,498,648.42/31,465.75
  6. Step 6: Final answer
    x = 19,497.35

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.