Home / 20,725.04-28,604.96-12,223.98

Finding the Fourth Proportional to 20,725.04, 28,604.96 and 12,223.98

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Solution

The fourth proportional to 20,725.04, 28,604.96 and 12,223.98 is: 16,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.04 : 28,604.96 = 12,223.98 : x
  2. Step 2: Convert to fraction form
    20,725.04/28,604.96 = 12,223.98/x
  3. Step 3: Cross multiply
    20,725.04x = 28,604.96 × 12,223.98
  4. Step 4: Simplify right side
    20,725.04x = 349,666,458.94
  5. Step 5: Solve for x
    x = 349,666,458.94/20,725.04
  6. Step 6: Final answer
    x = 16,871.69

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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.