Home / 21,932.04-30,266.39-12,109.60

Finding the Fourth Proportional to 21,932.04, 30,266.39 and 12,109.60

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Solution

The fourth proportional to 21,932.04, 30,266.39 and 12,109.60 is: 16,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.04 : 30,266.39 = 12,109.60 : x
  2. Step 2: Convert to fraction form
    21,932.04/30,266.39 = 12,109.60/x
  3. Step 3: Cross multiply
    21,932.04x = 30,266.39 × 12,109.60
  4. Step 4: Simplify right side
    21,932.04x = 366,513,876.34
  5. Step 5: Solve for x
    x = 366,513,876.34/21,932.04
  6. Step 6: Final answer
    x = 16,711.34

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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.