Home / 31,609.85-47,421.60-16,816.61

Finding the Fourth Proportional to 31,609.85, 47,421.60 and 16,816.61

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Solution

The fourth proportional to 31,609.85, 47,421.60 and 16,816.61 is: 25,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.85 : 47,421.60 = 16,816.61 : x
  2. Step 2: Convert to fraction form
    31,609.85/47,421.60 = 16,816.61/x
  3. Step 3: Cross multiply
    31,609.85x = 47,421.60 × 16,816.61
  4. Step 4: Simplify right side
    31,609.85x = 797,470,671.33
  5. Step 5: Solve for x
    x = 797,470,671.33/31,609.85
  6. Step 6: Final answer
    x = 25,228.55

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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.