Home / 20,153.56-27,813.63-11,202.52

Finding the Fourth Proportional to 20,153.56, 27,813.63 and 11,202.52

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Solution

The fourth proportional to 20,153.56, 27,813.63 and 11,202.52 is: 15,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.56 : 27,813.63 = 11,202.52 : x
  2. Step 2: Convert to fraction form
    20,153.56/27,813.63 = 11,202.52/x
  3. Step 3: Cross multiply
    20,153.56x = 27,813.63 × 11,202.52
  4. Step 4: Simplify right side
    20,153.56x = 311,582,746.35
  5. Step 5: Solve for x
    x = 311,582,746.35/20,153.56
  6. Step 6: Final answer
    x = 15,460.43

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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.