Home / 20,145.48-27,801.19-11,070.96

Finding the Fourth Proportional to 20,145.48, 27,801.19 and 11,070.96

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Solution

The fourth proportional to 20,145.48, 27,801.19 and 11,070.96 is: 15,278.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,145.48 : 27,801.19 = 11,070.96 : x
  2. Step 2: Convert to fraction form
    20,145.48/27,801.19 = 11,070.96/x
  3. Step 3: Cross multiply
    20,145.48x = 27,801.19 × 11,070.96
  4. Step 4: Simplify right side
    20,145.48x = 307,785,928.41
  5. Step 5: Solve for x
    x = 307,785,928.41/20,145.48
  6. Step 6: Final answer
    x = 15,278.17

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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.