Home / 23,076.20-31,823.90-15,405.92

Finding the Fourth Proportional to 23,076.20, 31,823.90 and 15,405.92

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Solution

The fourth proportional to 23,076.20, 31,823.90 and 15,405.92 is: 21,245.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,076.20 : 31,823.90 = 15,405.92 : x
  2. Step 2: Convert to fraction form
    23,076.20/31,823.90 = 15,405.92/x
  3. Step 3: Cross multiply
    23,076.20x = 31,823.90 × 15,405.92
  4. Step 4: Simplify right side
    23,076.20x = 490,276,457.49
  5. Step 5: Solve for x
    x = 490,276,457.49/23,076.20
  6. Step 6: Final answer
    x = 21,245.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.