Home / 20,706.99-28,574.22-11,754.66

Finding the Fourth Proportional to 20,706.99, 28,574.22 and 11,754.66

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Solution

The fourth proportional to 20,706.99, 28,574.22 and 11,754.66 is: 16,220.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.99 : 28,574.22 = 11,754.66 : x
  2. Step 2: Convert to fraction form
    20,706.99/28,574.22 = 11,754.66/x
  3. Step 3: Cross multiply
    20,706.99x = 28,574.22 × 11,754.66
  4. Step 4: Simplify right side
    20,706.99x = 335,880,240.87
  5. Step 5: Solve for x
    x = 335,880,240.87/20,706.99
  6. Step 6: Final answer
    x = 16,220.62

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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.