Home / 31,415.61-47,113.42-10,351.72

Finding the Fourth Proportional to 31,415.61, 47,113.42 and 10,351.72

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Solution

The fourth proportional to 31,415.61, 47,113.42 and 10,351.72 is: 15,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,415.61 : 47,113.42 = 10,351.72 : x
  2. Step 2: Convert to fraction form
    31,415.61/47,113.42 = 10,351.72/x
  3. Step 3: Cross multiply
    31,415.61x = 47,113.42 × 10,351.72
  4. Step 4: Simplify right side
    31,415.61x = 487,705,113.37
  5. Step 5: Solve for x
    x = 487,705,113.37/31,415.61
  6. Step 6: Final answer
    x = 15,524.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.