Home / 31,616.57-47,367.75-19,764.70

Finding the Fourth Proportional to 31,616.57, 47,367.75 and 19,764.70

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Solution

The fourth proportional to 31,616.57, 47,367.75 and 19,764.70 is: 29,611.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.57 : 47,367.75 = 19,764.70 : x
  2. Step 2: Convert to fraction form
    31,616.57/47,367.75 = 19,764.70/x
  3. Step 3: Cross multiply
    31,616.57x = 47,367.75 × 19,764.70
  4. Step 4: Simplify right side
    31,616.57x = 936,209,368.43
  5. Step 5: Solve for x
    x = 936,209,368.43/31,616.57
  6. Step 6: Final answer
    x = 29,611.35

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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.