Home / 20,005.52-27,607.68-11,053.28

Finding the Fourth Proportional to 20,005.52, 27,607.68 and 11,053.28

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Solution

The fourth proportional to 20,005.52, 27,607.68 and 11,053.28 is: 15,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.52 : 27,607.68 = 11,053.28 : x
  2. Step 2: Convert to fraction form
    20,005.52/27,607.68 = 11,053.28/x
  3. Step 3: Cross multiply
    20,005.52x = 27,607.68 × 11,053.28
  4. Step 4: Simplify right side
    20,005.52x = 305,155,417.19
  5. Step 5: Solve for x
    x = 305,155,417.19/20,005.52
  6. Step 6: Final answer
    x = 15,253.56

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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.