Home / 28,137.05-42,226.32-13,346.01

Finding the Fourth Proportional to 28,137.05, 42,226.32 and 13,346.01

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Solution

The fourth proportional to 28,137.05, 42,226.32 and 13,346.01 is: 20,028.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.05 : 42,226.32 = 13,346.01 : x
  2. Step 2: Convert to fraction form
    28,137.05/42,226.32 = 13,346.01/x
  3. Step 3: Cross multiply
    28,137.05x = 42,226.32 × 13,346.01
  4. Step 4: Simplify right side
    28,137.05x = 563,552,888.98
  5. Step 5: Solve for x
    x = 563,552,888.98/28,137.05
  6. Step 6: Final answer
    x = 20,028.86

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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.