Home / 20,050.29-30,075.45-12,665.97

Finding the Fourth Proportional to 20,050.29, 30,075.45 and 12,665.97

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Solution

The fourth proportional to 20,050.29, 30,075.45 and 12,665.97 is: 18,998.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,050.29 : 30,075.45 = 12,665.97 : x
  2. Step 2: Convert to fraction form
    20,050.29/30,075.45 = 12,665.97/x
  3. Step 3: Cross multiply
    20,050.29x = 30,075.45 × 12,665.97
  4. Step 4: Simplify right side
    20,050.29x = 380,934,747.44
  5. Step 5: Solve for x
    x = 380,934,747.44/20,050.29
  6. Step 6: Final answer
    x = 18,998.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.