Home / 21,698.28-29,942.85-12,266.64

Finding the Fourth Proportional to 21,698.28, 29,942.85 and 12,266.64

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Solution

The fourth proportional to 21,698.28, 29,942.85 and 12,266.64 is: 16,927.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,698.28 : 29,942.85 = 12,266.64 : x
  2. Step 2: Convert to fraction form
    21,698.28/29,942.85 = 12,266.64/x
  3. Step 3: Cross multiply
    21,698.28x = 29,942.85 × 12,266.64
  4. Step 4: Simplify right side
    21,698.28x = 367,298,161.52
  5. Step 5: Solve for x
    x = 367,298,161.52/21,698.28
  6. Step 6: Final answer
    x = 16,927.52

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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.