Home / 21,622.69-32,436.35-9,143.98

Finding the Fourth Proportional to 21,622.69, 32,436.35 and 9,143.98

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Solution

The fourth proportional to 21,622.69, 32,436.35 and 9,143.98 is: 13,716.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.69 : 32,436.35 = 9,143.98 : x
  2. Step 2: Convert to fraction form
    21,622.69/32,436.35 = 9,143.98/x
  3. Step 3: Cross multiply
    21,622.69x = 32,436.35 × 9,143.98
  4. Step 4: Simplify right side
    21,622.69x = 296,597,246.67
  5. Step 5: Solve for x
    x = 296,597,246.67/21,622.69
  6. Step 6: Final answer
    x = 13,716.94

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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.