Home / 21,696.74-29,940.68-12,265.52

Finding the Fourth Proportional to 21,696.74, 29,940.68 and 12,265.52

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Solution

The fourth proportional to 21,696.74, 29,940.68 and 12,265.52 is: 16,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,696.74 : 29,940.68 = 12,265.52 : x
  2. Step 2: Convert to fraction form
    21,696.74/29,940.68 = 12,265.52/x
  3. Step 3: Cross multiply
    21,696.74x = 29,940.68 × 12,265.52
  4. Step 4: Simplify right side
    21,696.74x = 367,238,009.35
  5. Step 5: Solve for x
    x = 367,238,009.35/21,696.74
  6. Step 6: Final answer
    x = 16,925.95

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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.