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Finding the Fourth Proportional to 22,017.10, 33,005.10 and 8,690.20

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Solution

The fourth proportional to 22,017.10, 33,005.10 and 8,690.20 is: 13,027.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,017.10 : 33,005.10 = 8,690.20 : x
  2. Step 2: Convert to fraction form
    22,017.10/33,005.10 = 8,690.20/x
  3. Step 3: Cross multiply
    22,017.10x = 33,005.10 × 8,690.20
  4. Step 4: Simplify right side
    22,017.10x = 286,820,920.02
  5. Step 5: Solve for x
    x = 286,820,920.02/22,017.10
  6. Step 6: Final answer
    x = 13,027.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.