Home / 21,813.95-30,102.17-12,252.66

Finding the Fourth Proportional to 21,813.95, 30,102.17 and 12,252.66

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Solution

The fourth proportional to 21,813.95, 30,102.17 and 12,252.66 is: 16,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.95 : 30,102.17 = 12,252.66 : x
  2. Step 2: Convert to fraction form
    21,813.95/30,102.17 = 12,252.66/x
  3. Step 3: Cross multiply
    21,813.95x = 30,102.17 × 12,252.66
  4. Step 4: Simplify right side
    21,813.95x = 368,831,654.27
  5. Step 5: Solve for x
    x = 368,831,654.27/21,813.95
  6. Step 6: Final answer
    x = 16,908.06

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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.