Home / 28,482.11-42,723.16-18,629.67

Finding the Fourth Proportional to 28,482.11, 42,723.16 and 18,629.67

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Solution

The fourth proportional to 28,482.11, 42,723.16 and 18,629.67 is: 27,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,482.11 : 42,723.16 = 18,629.67 : x
  2. Step 2: Convert to fraction form
    28,482.11/42,723.16 = 18,629.67/x
  3. Step 3: Cross multiply
    28,482.11x = 42,723.16 × 18,629.67
  4. Step 4: Simplify right side
    28,482.11x = 795,918,391.83
  5. Step 5: Solve for x
    x = 795,918,391.83/28,482.11
  6. Step 6: Final answer
    x = 27,944.51

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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.