Home / 21,967.80-30,315.70-12,277.26

Finding the Fourth Proportional to 21,967.80, 30,315.70 and 12,277.26

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Solution

The fourth proportional to 21,967.80, 30,315.70 and 12,277.26 is: 16,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.80 : 30,315.70 = 12,277.26 : x
  2. Step 2: Convert to fraction form
    21,967.80/30,315.70 = 12,277.26/x
  3. Step 3: Cross multiply
    21,967.80x = 30,315.70 × 12,277.26
  4. Step 4: Simplify right side
    21,967.80x = 372,193,730.98
  5. Step 5: Solve for x
    x = 372,193,730.98/21,967.80
  6. Step 6: Final answer
    x = 16,942.69

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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.