Home / 31,459.15-47,221.50-13,941.28

Finding the Fourth Proportional to 31,459.15, 47,221.50 and 13,941.28

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Solution

The fourth proportional to 31,459.15, 47,221.50 and 13,941.28 is: 20,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.15 : 47,221.50 = 13,941.28 : x
  2. Step 2: Convert to fraction form
    31,459.15/47,221.50 = 13,941.28/x
  3. Step 3: Cross multiply
    31,459.15x = 47,221.50 × 13,941.28
  4. Step 4: Simplify right side
    31,459.15x = 658,328,153.52
  5. Step 5: Solve for x
    x = 658,328,153.52/31,459.15
  6. Step 6: Final answer
    x = 20,926.44

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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.