Home / 19,889.40-27,441.54-12,341.64

Finding the Fourth Proportional to 19,889.40, 27,441.54 and 12,341.64

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Solution

The fourth proportional to 19,889.40, 27,441.54 and 12,341.64 is: 17,027.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.40 : 27,441.54 = 12,341.64 : x
  2. Step 2: Convert to fraction form
    19,889.40/27,441.54 = 12,341.64/x
  3. Step 3: Cross multiply
    19,889.40x = 27,441.54 × 12,341.64
  4. Step 4: Simplify right side
    19,889.40x = 338,673,607.73
  5. Step 5: Solve for x
    x = 338,673,607.73/19,889.40
  6. Step 6: Final answer
    x = 17,027.84

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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.