Home / 22,312.22-30,790.35-12,240.47

Finding the Fourth Proportional to 22,312.22, 30,790.35 and 12,240.47

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Solution

The fourth proportional to 22,312.22, 30,790.35 and 12,240.47 is: 16,891.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,312.22 : 30,790.35 = 12,240.47 : x
  2. Step 2: Convert to fraction form
    22,312.22/30,790.35 = 12,240.47/x
  3. Step 3: Cross multiply
    22,312.22x = 30,790.35 × 12,240.47
  4. Step 4: Simplify right side
    22,312.22x = 376,888,432.44
  5. Step 5: Solve for x
    x = 376,888,432.44/22,312.22
  6. Step 6: Final answer
    x = 16,891.57

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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.