Home / 19,722.48-27,217.16-11,225.24

Finding the Fourth Proportional to 19,722.48, 27,217.16 and 11,225.24

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Solution

The fourth proportional to 19,722.48, 27,217.16 and 11,225.24 is: 15,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.48 : 27,217.16 = 11,225.24 : x
  2. Step 2: Convert to fraction form
    19,722.48/27,217.16 = 11,225.24/x
  3. Step 3: Cross multiply
    19,722.48x = 27,217.16 × 11,225.24
  4. Step 4: Simplify right side
    19,722.48x = 305,519,153.12
  5. Step 5: Solve for x
    x = 305,519,153.12/19,722.48
  6. Step 6: Final answer
    x = 15,490.91

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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.