Home / 31,277.20-46,910.52-8,782.72

Finding the Fourth Proportional to 31,277.20, 46,910.52 and 8,782.72

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Solution

The fourth proportional to 31,277.20, 46,910.52 and 8,782.72 is: 13,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.20 : 46,910.52 = 8,782.72 : x
  2. Step 2: Convert to fraction form
    31,277.20/46,910.52 = 8,782.72/x
  3. Step 3: Cross multiply
    31,277.20x = 46,910.52 × 8,782.72
  4. Step 4: Simplify right side
    31,277.20x = 412,001,962.21
  5. Step 5: Solve for x
    x = 412,001,962.21/31,277.20
  6. Step 6: Final answer
    x = 13,172.60

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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.