Home / 21,556.38-29,747.50-12,124.94

Finding the Fourth Proportional to 21,556.38, 29,747.50 and 12,124.94

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Solution

The fourth proportional to 21,556.38, 29,747.50 and 12,124.94 is: 16,732.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,556.38 : 29,747.50 = 12,124.94 : x
  2. Step 2: Convert to fraction form
    21,556.38/29,747.50 = 12,124.94/x
  3. Step 3: Cross multiply
    21,556.38x = 29,747.50 × 12,124.94
  4. Step 4: Simplify right side
    21,556.38x = 360,686,652.65
  5. Step 5: Solve for x
    x = 360,686,652.65/21,556.38
  6. Step 6: Final answer
    x = 16,732.25

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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.