Home / 20,744.77-28,651.69-15,104.74

Finding the Fourth Proportional to 20,744.77, 28,651.69 and 15,104.74

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Solution

The fourth proportional to 20,744.77, 28,651.69 and 15,104.74 is: 20,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.77 : 28,651.69 = 15,104.74 : x
  2. Step 2: Convert to fraction form
    20,744.77/28,651.69 = 15,104.74/x
  3. Step 3: Cross multiply
    20,744.77x = 28,651.69 × 15,104.74
  4. Step 4: Simplify right side
    20,744.77x = 432,776,328.01
  5. Step 5: Solve for x
    x = 432,776,328.01/20,744.77
  6. Step 6: Final answer
    x = 20,861.95

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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.