Home / 14,949.86-20,481.40-14,389.34

Finding the Fourth Proportional to 14,949.86, 20,481.40 and 14,389.34

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Solution

The fourth proportional to 14,949.86, 20,481.40 and 14,389.34 is: 19,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.86 : 20,481.40 = 14,389.34 : x
  2. Step 2: Convert to fraction form
    14,949.86/20,481.40 = 14,389.34/x
  3. Step 3: Cross multiply
    14,949.86x = 20,481.40 × 14,389.34
  4. Step 4: Simplify right side
    14,949.86x = 294,713,689.90
  5. Step 5: Solve for x
    x = 294,713,689.90/14,949.86
  6. Step 6: Final answer
    x = 19,713.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.