Home / 31,700.12-47,580.96-16,919.44

Finding the Fourth Proportional to 31,700.12, 47,580.96 and 16,919.44

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Solution

The fourth proportional to 31,700.12, 47,580.96 and 16,919.44 is: 25,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.12 : 47,580.96 = 16,919.44 : x
  2. Step 2: Convert to fraction form
    31,700.12/47,580.96 = 16,919.44/x
  3. Step 3: Cross multiply
    31,700.12x = 47,580.96 × 16,919.44
  4. Step 4: Simplify right side
    31,700.12x = 805,043,197.86
  5. Step 5: Solve for x
    x = 805,043,197.86/31,700.12
  6. Step 6: Final answer
    x = 25,395.59

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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.