Home / 20,203.66-27,881.06-11,252.88

Finding the Fourth Proportional to 20,203.66, 27,881.06 and 11,252.88

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Solution

The fourth proportional to 20,203.66, 27,881.06 and 11,252.88 is: 15,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.66 : 27,881.06 = 11,252.88 : x
  2. Step 2: Convert to fraction form
    20,203.66/27,881.06 = 11,252.88/x
  3. Step 3: Cross multiply
    20,203.66x = 27,881.06 × 11,252.88
  4. Step 4: Simplify right side
    20,203.66x = 313,742,222.45
  5. Step 5: Solve for x
    x = 313,742,222.45/20,203.66
  6. Step 6: Final answer
    x = 15,528.98

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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.