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Finding the Fourth Proportional to 22,159.98, 30,583.12 and 13,551.20

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Solution

The fourth proportional to 22,159.98, 30,583.12 and 13,551.20 is: 18,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.98 : 30,583.12 = 13,551.20 : x
  2. Step 2: Convert to fraction form
    22,159.98/30,583.12 = 13,551.20/x
  3. Step 3: Cross multiply
    22,159.98x = 30,583.12 × 13,551.20
  4. Step 4: Simplify right side
    22,159.98x = 414,437,929.05
  5. Step 5: Solve for x
    x = 414,437,929.05/22,159.98
  6. Step 6: Final answer
    x = 18,702.09

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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.