Home / 20,005.30-27,607.61-11,053.01

Finding the Fourth Proportional to 20,005.30, 27,607.61 and 11,053.01

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Solution

The fourth proportional to 20,005.30, 27,607.61 and 11,053.01 is: 15,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.30 : 27,607.61 = 11,053.01 : x
  2. Step 2: Convert to fraction form
    20,005.30/27,607.61 = 11,053.01/x
  3. Step 3: Cross multiply
    20,005.30x = 27,607.61 × 11,053.01
  4. Step 4: Simplify right side
    20,005.30x = 305,147,134.14
  5. Step 5: Solve for x
    x = 305,147,134.14/20,005.30
  6. Step 6: Final answer
    x = 15,253.31

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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.