Home / 31,823.55-47,742.21-12,102.48

Finding the Fourth Proportional to 31,823.55, 47,742.21 and 12,102.48

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Solution

The fourth proportional to 31,823.55, 47,742.21 and 12,102.48 is: 18,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,823.55 : 47,742.21 = 12,102.48 : x
  2. Step 2: Convert to fraction form
    31,823.55/47,742.21 = 12,102.48/x
  3. Step 3: Cross multiply
    31,823.55x = 47,742.21 × 12,102.48
  4. Step 4: Simplify right side
    31,823.55x = 577,799,141.68
  5. Step 5: Solve for x
    x = 577,799,141.68/31,823.55
  6. Step 6: Final answer
    x = 18,156.34

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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.