Home / 21,766.80-32,631.05-8,628.39

Finding the Fourth Proportional to 21,766.80, 32,631.05 and 8,628.39

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Solution

The fourth proportional to 21,766.80, 32,631.05 and 8,628.39 is: 12,934.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.80 : 32,631.05 = 8,628.39 : x
  2. Step 2: Convert to fraction form
    21,766.80/32,631.05 = 8,628.39/x
  3. Step 3: Cross multiply
    21,766.80x = 32,631.05 × 8,628.39
  4. Step 4: Simplify right side
    21,766.80x = 281,553,425.51
  5. Step 5: Solve for x
    x = 281,553,425.51/21,766.80
  6. Step 6: Final answer
    x = 12,934.99

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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.