Home / 20,015.12-27,622.92-14,429.36

Finding the Fourth Proportional to 20,015.12, 27,622.92 and 14,429.36

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Solution

The fourth proportional to 20,015.12, 27,622.92 and 14,429.36 is: 19,914.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.12 : 27,622.92 = 14,429.36 : x
  2. Step 2: Convert to fraction form
    20,015.12/27,622.92 = 14,429.36/x
  3. Step 3: Cross multiply
    20,015.12x = 27,622.92 × 14,429.36
  4. Step 4: Simplify right side
    20,015.12x = 398,581,056.93
  5. Step 5: Solve for x
    x = 398,581,056.93/20,015.12
  6. Step 6: Final answer
    x = 19,914.00

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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.