Home / 28,141.98-42,219.21-10,611.96

Finding the Fourth Proportional to 28,141.98, 42,219.21 and 10,611.96

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Solution

The fourth proportional to 28,141.98, 42,219.21 and 10,611.96 is: 15,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.98 : 42,219.21 = 10,611.96 : x
  2. Step 2: Convert to fraction form
    28,141.98/42,219.21 = 10,611.96/x
  3. Step 3: Cross multiply
    28,141.98x = 42,219.21 × 10,611.96
  4. Step 4: Simplify right side
    28,141.98x = 448,028,567.75
  5. Step 5: Solve for x
    x = 448,028,567.75/28,141.98
  6. Step 6: Final answer
    x = 15,920.29

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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.