Home / 22,190.04-30,623.49-12,119.40

Finding the Fourth Proportional to 22,190.04, 30,623.49 and 12,119.40

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Solution

The fourth proportional to 22,190.04, 30,623.49 and 12,119.40 is: 16,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.04 : 30,623.49 = 12,119.40 : x
  2. Step 2: Convert to fraction form
    22,190.04/30,623.49 = 12,119.40/x
  3. Step 3: Cross multiply
    22,190.04x = 30,623.49 × 12,119.40
  4. Step 4: Simplify right side
    22,190.04x = 371,138,324.71
  5. Step 5: Solve for x
    x = 371,138,324.71/22,190.04
  6. Step 6: Final answer
    x = 16,725.45

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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.