Home / 31,682.16-47,530.80-10,905.84

Finding the Fourth Proportional to 31,682.16, 47,530.80 and 10,905.84

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Solution

The fourth proportional to 31,682.16, 47,530.80 and 10,905.84 is: 16,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,682.16 : 47,530.80 = 10,905.84 : x
  2. Step 2: Convert to fraction form
    31,682.16/47,530.80 = 10,905.84/x
  3. Step 3: Cross multiply
    31,682.16x = 47,530.80 × 10,905.84
  4. Step 4: Simplify right side
    31,682.16x = 518,363,299.87
  5. Step 5: Solve for x
    x = 518,363,299.87/31,682.16
  6. Step 6: Final answer
    x = 16,361.36

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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.