Home / 22,232.52-30,681.48-12,161.55

Finding the Fourth Proportional to 22,232.52, 30,681.48 and 12,161.55

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Solution

The fourth proportional to 22,232.52, 30,681.48 and 12,161.55 is: 16,783.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,232.52 : 30,681.48 = 12,161.55 : x
  2. Step 2: Convert to fraction form
    22,232.52/30,681.48 = 12,161.55/x
  3. Step 3: Cross multiply
    22,232.52x = 30,681.48 × 12,161.55
  4. Step 4: Simplify right side
    22,232.52x = 373,134,513.76
  5. Step 5: Solve for x
    x = 373,134,513.76/22,232.52
  6. Step 6: Final answer
    x = 16,783.28

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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.