Home / 31,516.49-47,233.82-12,774.60

Finding the Fourth Proportional to 31,516.49, 47,233.82 and 12,774.60

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Solution

The fourth proportional to 31,516.49, 47,233.82 and 12,774.60 is: 19,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,516.49 : 47,233.82 = 12,774.60 : x
  2. Step 2: Convert to fraction form
    31,516.49/47,233.82 = 12,774.60/x
  3. Step 3: Cross multiply
    31,516.49x = 47,233.82 × 12,774.60
  4. Step 4: Simplify right side
    31,516.49x = 603,393,188.91
  5. Step 5: Solve for x
    x = 603,393,188.91/31,516.49
  6. Step 6: Final answer
    x = 19,145.32

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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.