Home / 22,415.88-30,934.68-12,345.04

Finding the Fourth Proportional to 22,415.88, 30,934.68 and 12,345.04

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Solution

The fourth proportional to 22,415.88, 30,934.68 and 12,345.04 is: 17,036.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,415.88 : 30,934.68 = 12,345.04 : x
  2. Step 2: Convert to fraction form
    22,415.88/30,934.68 = 12,345.04/x
  3. Step 3: Cross multiply
    22,415.88x = 30,934.68 × 12,345.04
  4. Step 4: Simplify right side
    22,415.88x = 381,889,861.99
  5. Step 5: Solve for x
    x = 381,889,861.99/22,415.88
  6. Step 6: Final answer
    x = 17,036.58

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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.