Home / 20,009.12-27,612.48-11,057.24

Finding the Fourth Proportional to 20,009.12, 27,612.48 and 11,057.24

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Solution

The fourth proportional to 20,009.12, 27,612.48 and 11,057.24 is: 15,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.12 : 27,612.48 = 11,057.24 : x
  2. Step 2: Convert to fraction form
    20,009.12/27,612.48 = 11,057.24/x
  3. Step 3: Cross multiply
    20,009.12x = 27,612.48 × 11,057.24
  4. Step 4: Simplify right side
    20,009.12x = 305,317,818.36
  5. Step 5: Solve for x
    x = 305,317,818.36/20,009.12
  6. Step 6: Final answer
    x = 15,258.93

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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.