Home / 22,116.20-30,520.93-12,045.06

Finding the Fourth Proportional to 22,116.20, 30,520.93 and 12,045.06

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Solution

The fourth proportional to 22,116.20, 30,520.93 and 12,045.06 is: 16,622.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,116.20 : 30,520.93 = 12,045.06 : x
  2. Step 2: Convert to fraction form
    22,116.20/30,520.93 = 12,045.06/x
  3. Step 3: Cross multiply
    22,116.20x = 30,520.93 × 12,045.06
  4. Step 4: Simplify right side
    22,116.20x = 367,626,433.11
  5. Step 5: Solve for x
    x = 367,626,433.11/22,116.20
  6. Step 6: Final answer
    x = 16,622.50

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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.