Home / 20,401.46-28,141.08-14,744.54

Finding the Fourth Proportional to 20,401.46, 28,141.08 and 14,744.54

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Solution

The fourth proportional to 20,401.46, 28,141.08 and 14,744.54 is: 20,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.46 : 28,141.08 = 14,744.54 : x
  2. Step 2: Convert to fraction form
    20,401.46/28,141.08 = 14,744.54/x
  3. Step 3: Cross multiply
    20,401.46x = 28,141.08 × 14,744.54
  4. Step 4: Simplify right side
    20,401.46x = 414,927,279.70
  5. Step 5: Solve for x
    x = 414,927,279.70/20,401.46
  6. Step 6: Final answer
    x = 20,338.12

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1.5x scale

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.