Home / 16,981.08-23,385.45-12,257.88

Finding the Fourth Proportional to 16,981.08, 23,385.45 and 12,257.88

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Solution

The fourth proportional to 16,981.08, 23,385.45 and 12,257.88 is: 16,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.08 : 23,385.45 = 12,257.88 : x
  2. Step 2: Convert to fraction form
    16,981.08/23,385.45 = 12,257.88/x
  3. Step 3: Cross multiply
    16,981.08x = 23,385.45 × 12,257.88
  4. Step 4: Simplify right side
    16,981.08x = 286,656,039.85
  5. Step 5: Solve for x
    x = 286,656,039.85/16,981.08
  6. Step 6: Final answer
    x = 16,880.91

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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.