Home / 19,921.87-29,799.57-13,998.34

Finding the Fourth Proportional to 19,921.87, 29,799.57 and 13,998.34

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Solution

The fourth proportional to 19,921.87, 29,799.57 and 13,998.34 is: 20,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.87 : 29,799.57 = 13,998.34 : x
  2. Step 2: Convert to fraction form
    19,921.87/29,799.57 = 13,998.34/x
  3. Step 3: Cross multiply
    19,921.87x = 29,799.57 × 13,998.34
  4. Step 4: Simplify right side
    19,921.87x = 417,144,512.71
  5. Step 5: Solve for x
    x = 417,144,512.71/19,921.87
  6. Step 6: Final answer
    x = 20,939.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.