Home / 31,766.90-47,650.08-8,074.51

Finding the Fourth Proportional to 31,766.90, 47,650.08 and 8,074.51

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Solution

The fourth proportional to 31,766.90, 47,650.08 and 8,074.51 is: 12,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,766.90 : 47,650.08 = 8,074.51 : x
  2. Step 2: Convert to fraction form
    31,766.90/47,650.08 = 8,074.51/x
  3. Step 3: Cross multiply
    31,766.90x = 47,650.08 × 8,074.51
  4. Step 4: Simplify right side
    31,766.90x = 384,751,007.09
  5. Step 5: Solve for x
    x = 384,751,007.09/31,766.90
  6. Step 6: Final answer
    x = 12,111.70

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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.