Home / 31,610.30-47,415.45-16,811.60

Finding the Fourth Proportional to 31,610.30, 47,415.45 and 16,811.60

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Solution

The fourth proportional to 31,610.30, 47,415.45 and 16,811.60 is: 25,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.30 : 47,415.45 = 16,811.60 : x
  2. Step 2: Convert to fraction form
    31,610.30/47,415.45 = 16,811.60/x
  3. Step 3: Cross multiply
    31,610.30x = 47,415.45 × 16,811.60
  4. Step 4: Simplify right side
    31,610.30x = 797,129,579.22
  5. Step 5: Solve for x
    x = 797,129,579.22/31,610.30
  6. Step 6: Final answer
    x = 25,217.40

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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.