Home / 20,549.49-28,358.02-11,474.99

Finding the Fourth Proportional to 20,549.49, 28,358.02 and 11,474.99

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Solution

The fourth proportional to 20,549.49, 28,358.02 and 11,474.99 is: 15,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.49 : 28,358.02 = 11,474.99 : x
  2. Step 2: Convert to fraction form
    20,549.49/28,358.02 = 11,474.99/x
  3. Step 3: Cross multiply
    20,549.49x = 28,358.02 × 11,474.99
  4. Step 4: Simplify right side
    20,549.49x = 325,407,995.92
  5. Step 5: Solve for x
    x = 325,407,995.92/20,549.49
  6. Step 6: Final answer
    x = 15,835.33

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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.