Home / 19,107.72-28,487.16-18,622.17

Finding the Fourth Proportional to 19,107.72, 28,487.16 and 18,622.17

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Solution

The fourth proportional to 19,107.72, 28,487.16 and 18,622.17 is: 27,763.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,107.72 : 28,487.16 = 18,622.17 : x
  2. Step 2: Convert to fraction form
    19,107.72/28,487.16 = 18,622.17/x
  3. Step 3: Cross multiply
    19,107.72x = 28,487.16 × 18,622.17
  4. Step 4: Simplify right side
    19,107.72x = 530,492,500.79
  5. Step 5: Solve for x
    x = 530,492,500.79/19,107.72
  6. Step 6: Final answer
    x = 27,763.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.