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Finding the Fourth Proportional to 22,095, 30,491.10 and 12,159

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Solution

The fourth proportional to 22,095, 30,491.10 and 12,159 is: 16,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,095 : 30,491.10 = 12,159 : x
  2. Step 2: Convert to fraction form
    22,095/30,491.10 = 12,159/x
  3. Step 3: Cross multiply
    22,095x = 30,491.10 × 12,159
  4. Step 4: Simplify right side
    22,095x = 370,741,284.90
  5. Step 5: Solve for x
    x = 370,741,284.90/22,095
  6. Step 6: Final answer
    x = 16,779.42

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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.