Home / 28,530.44-42,766.89-11,899.67

Finding the Fourth Proportional to 28,530.44, 42,766.89 and 11,899.67

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Solution

The fourth proportional to 28,530.44, 42,766.89 and 11,899.67 is: 17,837.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.44 : 42,766.89 = 11,899.67 : x
  2. Step 2: Convert to fraction form
    28,530.44/42,766.89 = 11,899.67/x
  3. Step 3: Cross multiply
    28,530.44x = 42,766.89 × 11,899.67
  4. Step 4: Simplify right side
    28,530.44x = 508,911,877.93
  5. Step 5: Solve for x
    x = 508,911,877.93/28,530.44
  6. Step 6: Final answer
    x = 17,837.51

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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.