Home / 28,528.44-42,763.89-11,897.67

Finding the Fourth Proportional to 28,528.44, 42,763.89 and 11,897.67

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Solution

The fourth proportional to 28,528.44, 42,763.89 and 11,897.67 is: 17,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.44 : 42,763.89 = 11,897.67 : x
  2. Step 2: Convert to fraction form
    28,528.44/42,763.89 = 11,897.67/x
  3. Step 3: Cross multiply
    28,528.44x = 42,763.89 × 11,897.67
  4. Step 4: Simplify right side
    28,528.44x = 508,790,651.14
  5. Step 5: Solve for x
    x = 508,790,651.14/28,528.44
  6. Step 6: Final answer
    x = 17,834.51

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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.