Home / 22,232.55-30,681.81-12,161.42

Finding the Fourth Proportional to 22,232.55, 30,681.81 and 12,161.42

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Solution

The fourth proportional to 22,232.55, 30,681.81 and 12,161.42 is: 16,783.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,232.55 : 30,681.81 = 12,161.42 : x
  2. Step 2: Convert to fraction form
    22,232.55/30,681.81 = 12,161.42/x
  3. Step 3: Cross multiply
    22,232.55x = 30,681.81 × 12,161.42
  4. Step 4: Simplify right side
    22,232.55x = 373,134,377.77
  5. Step 5: Solve for x
    x = 373,134,377.77/22,232.55
  6. Step 6: Final answer
    x = 16,783.25

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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.