Home / 31,740.89-47,611.67-13,007.87

Finding the Fourth Proportional to 31,740.89, 47,611.67 and 13,007.87

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Solution

The fourth proportional to 31,740.89, 47,611.67 and 13,007.87 is: 19,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.89 : 47,611.67 = 13,007.87 : x
  2. Step 2: Convert to fraction form
    31,740.89/47,611.67 = 13,007.87/x
  3. Step 3: Cross multiply
    31,740.89x = 47,611.67 × 13,007.87
  4. Step 4: Simplify right side
    31,740.89x = 619,326,265.14
  5. Step 5: Solve for x
    x = 619,326,265.14/31,740.89
  6. Step 6: Final answer
    x = 19,511.94

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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.