Home / 22,190.16-30,609.72-15,818.16

Finding the Fourth Proportional to 22,190.16, 30,609.72 and 15,818.16

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Solution

The fourth proportional to 22,190.16, 30,609.72 and 15,818.16 is: 21,820.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.16 : 30,609.72 = 15,818.16 : x
  2. Step 2: Convert to fraction form
    22,190.16/30,609.72 = 15,818.16/x
  3. Step 3: Cross multiply
    22,190.16x = 30,609.72 × 15,818.16
  4. Step 4: Simplify right side
    22,190.16x = 484,189,448.52
  5. Step 5: Solve for x
    x = 484,189,448.52/22,190.16
  6. Step 6: Final answer
    x = 21,820.01

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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.