Home / 22,122.40-30,529.43-12,051.40

Finding the Fourth Proportional to 22,122.40, 30,529.43 and 12,051.40

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Solution

The fourth proportional to 22,122.40, 30,529.43 and 12,051.40 is: 16,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.40 : 30,529.43 = 12,051.40 : x
  2. Step 2: Convert to fraction form
    22,122.40/30,529.43 = 12,051.40/x
  3. Step 3: Cross multiply
    22,122.40x = 30,529.43 × 12,051.40
  4. Step 4: Simplify right side
    22,122.40x = 367,922,372.70
  5. Step 5: Solve for x
    x = 367,922,372.70/22,122.40
  6. Step 6: Final answer
    x = 16,631.21

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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.