Home / 31,814.20-47,737.50-13,108.60

Finding the Fourth Proportional to 31,814.20, 47,737.50 and 13,108.60

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Solution

The fourth proportional to 31,814.20, 47,737.50 and 13,108.60 is: 19,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.20 : 47,737.50 = 13,108.60 : x
  2. Step 2: Convert to fraction form
    31,814.20/47,737.50 = 13,108.60/x
  3. Step 3: Cross multiply
    31,814.20x = 47,737.50 × 13,108.60
  4. Step 4: Simplify right side
    31,814.20x = 625,771,792.50
  5. Step 5: Solve for x
    x = 625,771,792.50/31,814.20
  6. Step 6: Final answer
    x = 19,669.57

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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.