Home / 31,827.54-47,737.62-8,455.80

Finding the Fourth Proportional to 31,827.54, 47,737.62 and 8,455.80

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Solution

The fourth proportional to 31,827.54, 47,737.62 and 8,455.80 is: 12,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,827.54 : 47,737.62 = 8,455.80 : x
  2. Step 2: Convert to fraction form
    31,827.54/47,737.62 = 8,455.80/x
  3. Step 3: Cross multiply
    31,827.54x = 47,737.62 × 8,455.80
  4. Step 4: Simplify right side
    31,827.54x = 403,659,767.20
  5. Step 5: Solve for x
    x = 403,659,767.20/31,827.54
  6. Step 6: Final answer
    x = 12,682.72

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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.