Home / 21,602.53-29,813.37-12,172.92

Finding the Fourth Proportional to 21,602.53, 29,813.37 and 12,172.92

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Solution

The fourth proportional to 21,602.53, 29,813.37 and 12,172.92 is: 16,799.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,602.53 : 29,813.37 = 12,172.92 : x
  2. Step 2: Convert to fraction form
    21,602.53/29,813.37 = 12,172.92/x
  3. Step 3: Cross multiply
    21,602.53x = 29,813.37 × 12,172.92
  4. Step 4: Simplify right side
    21,602.53x = 362,915,610.49
  5. Step 5: Solve for x
    x = 362,915,610.49/21,602.53
  6. Step 6: Final answer
    x = 16,799.68

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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.