Home / 22,378.36-30,882.21-12,307.42

Finding the Fourth Proportional to 22,378.36, 30,882.21 and 12,307.42

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Solution

The fourth proportional to 22,378.36, 30,882.21 and 12,307.42 is: 16,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378.36 : 30,882.21 = 12,307.42 : x
  2. Step 2: Convert to fraction form
    22,378.36/30,882.21 = 12,307.42/x
  3. Step 3: Cross multiply
    22,378.36x = 30,882.21 × 12,307.42
  4. Step 4: Simplify right side
    22,378.36x = 380,080,329.00
  5. Step 5: Solve for x
    x = 380,080,329.00/22,378.36
  6. Step 6: Final answer
    x = 16,984.28

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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.