Home / 20,063.52-27,688.54-11,111.02

Finding the Fourth Proportional to 20,063.52, 27,688.54 and 11,111.02

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Solution

The fourth proportional to 20,063.52, 27,688.54 and 11,111.02 is: 15,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.52 : 27,688.54 = 11,111.02 : x
  2. Step 2: Convert to fraction form
    20,063.52/27,688.54 = 11,111.02/x
  3. Step 3: Cross multiply
    20,063.52x = 27,688.54 × 11,111.02
  4. Step 4: Simplify right side
    20,063.52x = 307,647,921.71
  5. Step 5: Solve for x
    x = 307,647,921.71/20,063.52
  6. Step 6: Final answer
    x = 15,333.70

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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.