Home / 28,113.21-42,202.22-19,285.83

Finding the Fourth Proportional to 28,113.21, 42,202.22 and 19,285.83

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Solution

The fourth proportional to 28,113.21, 42,202.22 and 19,285.83 is: 28,950.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.21 : 42,202.22 = 19,285.83 : x
  2. Step 2: Convert to fraction form
    28,113.21/42,202.22 = 19,285.83/x
  3. Step 3: Cross multiply
    28,113.21x = 42,202.22 × 19,285.83
  4. Step 4: Simplify right side
    28,113.21x = 813,904,744.11
  5. Step 5: Solve for x
    x = 813,904,744.11/28,113.21
  6. Step 6: Final answer
    x = 28,950.97

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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.