Home / 31,847.53-47,771.77-12,127.18

Finding the Fourth Proportional to 31,847.53, 47,771.77 and 12,127.18

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Solution

The fourth proportional to 31,847.53, 47,771.77 and 12,127.18 is: 18,190.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,847.53 : 47,771.77 = 12,127.18 : x
  2. Step 2: Convert to fraction form
    31,847.53/47,771.77 = 12,127.18/x
  3. Step 3: Cross multiply
    31,847.53x = 47,771.77 × 12,127.18
  4. Step 4: Simplify right side
    31,847.53x = 579,336,853.71
  5. Step 5: Solve for x
    x = 579,336,853.71/31,847.53
  6. Step 6: Final answer
    x = 18,190.95

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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.