Home / 20,200.24-27,875.71-11,247.55

Finding the Fourth Proportional to 20,200.24, 27,875.71 and 11,247.55

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Solution

The fourth proportional to 20,200.24, 27,875.71 and 11,247.55 is: 15,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.24 : 27,875.71 = 11,247.55 : x
  2. Step 2: Convert to fraction form
    20,200.24/27,875.71 = 11,247.55/x
  3. Step 3: Cross multiply
    20,200.24x = 27,875.71 × 11,247.55
  4. Step 4: Simplify right side
    20,200.24x = 313,533,442.01
  5. Step 5: Solve for x
    x = 313,533,442.01/20,200.24
  6. Step 6: Final answer
    x = 15,521.27

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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.