Home / 22,225.47-30,671.81-12,153.74

Finding the Fourth Proportional to 22,225.47, 30,671.81 and 12,153.74

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Solution

The fourth proportional to 22,225.47, 30,671.81 and 12,153.74 is: 16,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,225.47 : 30,671.81 = 12,153.74 : x
  2. Step 2: Convert to fraction form
    22,225.47/30,671.81 = 12,153.74/x
  3. Step 3: Cross multiply
    22,225.47x = 30,671.81 × 12,153.74
  4. Step 4: Simplify right side
    22,225.47x = 372,776,989.94
  5. Step 5: Solve for x
    x = 372,776,989.94/22,225.47
  6. Step 6: Final answer
    x = 16,772.51

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Half scale
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Similar ratio
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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.