Home / 21,734.14-29,993.07-12,303.58

Finding the Fourth Proportional to 21,734.14, 29,993.07 and 12,303.58

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Solution

The fourth proportional to 21,734.14, 29,993.07 and 12,303.58 is: 16,978.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,734.14 : 29,993.07 = 12,303.58 : x
  2. Step 2: Convert to fraction form
    21,734.14/29,993.07 = 12,303.58/x
  3. Step 3: Cross multiply
    21,734.14x = 29,993.07 × 12,303.58
  4. Step 4: Simplify right side
    21,734.14x = 369,022,136.19
  5. Step 5: Solve for x
    x = 369,022,136.19/21,734.14
  6. Step 6: Final answer
    x = 16,978.92

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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.