Home / 31,723.49-47,585.57-12,998.72

Finding the Fourth Proportional to 31,723.49, 47,585.57 and 12,998.72

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Solution

The fourth proportional to 31,723.49, 47,585.57 and 12,998.72 is: 19,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.49 : 47,585.57 = 12,998.72 : x
  2. Step 2: Convert to fraction form
    31,723.49/47,585.57 = 12,998.72/x
  3. Step 3: Cross multiply
    31,723.49x = 47,585.57 × 12,998.72
  4. Step 4: Simplify right side
    31,723.49x = 618,551,197.55
  5. Step 5: Solve for x
    x = 618,551,197.55/31,723.49
  6. Step 6: Final answer
    x = 19,498.21

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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.