Home / 21,684.02-29,921.54-12,252.59

Finding the Fourth Proportional to 21,684.02, 29,921.54 and 12,252.59

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Solution

The fourth proportional to 21,684.02, 29,921.54 and 12,252.59 is: 16,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,684.02 : 29,921.54 = 12,252.59 : x
  2. Step 2: Convert to fraction form
    21,684.02/29,921.54 = 12,252.59/x
  3. Step 3: Cross multiply
    21,684.02x = 29,921.54 × 12,252.59
  4. Step 4: Simplify right side
    21,684.02x = 366,616,150.92
  5. Step 5: Solve for x
    x = 366,616,150.92/21,684.02
  6. Step 6: Final answer
    x = 16,907.21

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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.