Home / 19,989.44-27,585.48-11,037.20

Finding the Fourth Proportional to 19,989.44, 27,585.48 and 11,037.20

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Solution

The fourth proportional to 19,989.44, 27,585.48 and 11,037.20 is: 15,231.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989.44 : 27,585.48 = 11,037.20 : x
  2. Step 2: Convert to fraction form
    19,989.44/27,585.48 = 11,037.20/x
  3. Step 3: Cross multiply
    19,989.44x = 27,585.48 × 11,037.20
  4. Step 4: Simplify right side
    19,989.44x = 304,466,459.86
  5. Step 5: Solve for x
    x = 304,466,459.86/19,989.44
  6. Step 6: Final answer
    x = 15,231.37

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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.