Home / 22,232.40-30,681.31-12,161.43

Finding the Fourth Proportional to 22,232.40, 30,681.31 and 12,161.43

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Solution

The fourth proportional to 22,232.40, 30,681.31 and 12,161.43 is: 16,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,232.40 : 30,681.31 = 12,161.43 : x
  2. Step 2: Convert to fraction form
    22,232.40/30,681.31 = 12,161.43/x
  3. Step 3: Cross multiply
    22,232.40x = 30,681.31 × 12,161.43
  4. Step 4: Simplify right side
    22,232.40x = 373,128,603.87
  5. Step 5: Solve for x
    x = 373,128,603.87/22,232.40
  6. Step 6: Final answer
    x = 16,783.10

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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.