Home / 20,625.50-28,470.58-12,242

Finding the Fourth Proportional to 20,625.50, 28,470.58 and 12,242

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Solution

The fourth proportional to 20,625.50, 28,470.58 and 12,242 is: 16,898.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.50 : 28,470.58 = 12,242 : x
  2. Step 2: Convert to fraction form
    20,625.50/28,470.58 = 12,242/x
  3. Step 3: Cross multiply
    20,625.50x = 28,470.58 × 12,242
  4. Step 4: Simplify right side
    20,625.50x = 348,536,840.36
  5. Step 5: Solve for x
    x = 348,536,840.36/20,625.50
  6. Step 6: Final answer
    x = 16,898.35

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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.