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Finding the Fourth Proportional to 31,600.00, 47,400.13 and 7,907.48

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Solution

The fourth proportional to 31,600.00, 47,400.13 and 7,907.48 is: 11,861.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,600.00 : 47,400.13 = 7,907.48 : x
  2. Step 2: Convert to fraction form
    31,600.00/47,400.13 = 7,907.48/x
  3. Step 3: Cross multiply
    31,600.00x = 47,400.13 × 7,907.48
  4. Step 4: Simplify right side
    31,600.00x = 374,815,421.93
  5. Step 5: Solve for x
    x = 374,815,421.93/31,600.00
  6. Step 6: Final answer
    x = 11,861.25

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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.