Home / 20,803.24-28,710.44-11,373.20

Finding the Fourth Proportional to 20,803.24, 28,710.44 and 11,373.20

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Solution

The fourth proportional to 20,803.24, 28,710.44 and 11,373.20 is: 15,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.24 : 28,710.44 = 11,373.20 : x
  2. Step 2: Convert to fraction form
    20,803.24/28,710.44 = 11,373.20/x
  3. Step 3: Cross multiply
    20,803.24x = 28,710.44 × 11,373.20
  4. Step 4: Simplify right side
    20,803.24x = 326,529,576.21
  5. Step 5: Solve for x
    x = 326,529,576.21/20,803.24
  6. Step 6: Final answer
    x = 15,696.09

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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.