Home / 22,195.99-30,629.54-12,637.29

Finding the Fourth Proportional to 22,195.99, 30,629.54 and 12,637.29

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Solution

The fourth proportional to 22,195.99, 30,629.54 and 12,637.29 is: 17,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.99 : 30,629.54 = 12,637.29 : x
  2. Step 2: Convert to fraction form
    22,195.99/30,629.54 = 12,637.29/x
  3. Step 3: Cross multiply
    22,195.99x = 30,629.54 × 12,637.29
  4. Step 4: Simplify right side
    22,195.99x = 387,074,379.55
  5. Step 5: Solve for x
    x = 387,074,379.55/22,195.99
  6. Step 6: Final answer
    x = 17,438.93

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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.