Home / 21,686.95-29,922.92-12,254.23

Finding the Fourth Proportional to 21,686.95, 29,922.92 and 12,254.23

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Solution

The fourth proportional to 21,686.95, 29,922.92 and 12,254.23 is: 16,907.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686.95 : 29,922.92 = 12,254.23 : x
  2. Step 2: Convert to fraction form
    21,686.95/29,922.92 = 12,254.23/x
  3. Step 3: Cross multiply
    21,686.95x = 29,922.92 × 12,254.23
  4. Step 4: Simplify right side
    21,686.95x = 366,682,253.83
  5. Step 5: Solve for x
    x = 366,682,253.83/21,686.95
  6. Step 6: Final answer
    x = 16,907.97

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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.