Home / 21,744.36-30,006.18-13,359.24

Finding the Fourth Proportional to 21,744.36, 30,006.18 and 13,359.24

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Solution

The fourth proportional to 21,744.36, 30,006.18 and 13,359.24 is: 18,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.36 : 30,006.18 = 13,359.24 : x
  2. Step 2: Convert to fraction form
    21,744.36/30,006.18 = 13,359.24/x
  3. Step 3: Cross multiply
    21,744.36x = 30,006.18 × 13,359.24
  4. Step 4: Simplify right side
    21,744.36x = 400,859,760.10
  5. Step 5: Solve for x
    x = 400,859,760.10/21,744.36
  6. Step 6: Final answer
    x = 18,435.11

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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.