Home / 28,354.66-42,538.35-8,634.77

Finding the Fourth Proportional to 28,354.66, 42,538.35 and 8,634.77

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Solution

The fourth proportional to 28,354.66, 42,538.35 and 8,634.77 is: 12,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,354.66 : 42,538.35 = 8,634.77 : x
  2. Step 2: Convert to fraction form
    28,354.66/42,538.35 = 8,634.77/x
  3. Step 3: Cross multiply
    28,354.66x = 42,538.35 × 8,634.77
  4. Step 4: Simplify right side
    28,354.66x = 367,308,868.43
  5. Step 5: Solve for x
    x = 367,308,868.43/28,354.66
  6. Step 6: Final answer
    x = 12,954.09

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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.