Home / 14,047.89-20,949.71-13,859.56

Finding the Fourth Proportional to 14,047.89, 20,949.71 and 13,859.56

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Solution

The fourth proportional to 14,047.89, 20,949.71 and 13,859.56 is: 20,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.89 : 20,949.71 = 13,859.56 : x
  2. Step 2: Convert to fraction form
    14,047.89/20,949.71 = 13,859.56/x
  3. Step 3: Cross multiply
    14,047.89x = 20,949.71 × 13,859.56
  4. Step 4: Simplify right side
    14,047.89x = 290,353,762.73
  5. Step 5: Solve for x
    x = 290,353,762.73/14,047.89
  6. Step 6: Final answer
    x = 20,668.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.