Home / 19,469.72-29,148.30-11,440.20

Finding the Fourth Proportional to 19,469.72, 29,148.30 and 11,440.20

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Solution

The fourth proportional to 19,469.72, 29,148.30 and 11,440.20 is: 17,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,469.72 : 29,148.30 = 11,440.20 : x
  2. Step 2: Convert to fraction form
    19,469.72/29,148.30 = 11,440.20/x
  3. Step 3: Cross multiply
    19,469.72x = 29,148.30 × 11,440.20
  4. Step 4: Simplify right side
    19,469.72x = 333,462,381.66
  5. Step 5: Solve for x
    x = 333,462,381.66/19,469.72
  6. Step 6: Final answer
    x = 17,127.23

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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.