Home / 22,200.91-30,637.13-12,129.23

Finding the Fourth Proportional to 22,200.91, 30,637.13 and 12,129.23

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Solution

The fourth proportional to 22,200.91, 30,637.13 and 12,129.23 is: 16,738.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,200.91 : 30,637.13 = 12,129.23 : x
  2. Step 2: Convert to fraction form
    22,200.91/30,637.13 = 12,129.23/x
  3. Step 3: Cross multiply
    22,200.91x = 30,637.13 × 12,129.23
  4. Step 4: Simplify right side
    22,200.91x = 371,604,812.26
  5. Step 5: Solve for x
    x = 371,604,812.26/22,200.91
  6. Step 6: Final answer
    x = 16,738.27

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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.