Home / 28,257.39-42,386.48-8,536.11

Finding the Fourth Proportional to 28,257.39, 42,386.48 and 8,536.11

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Solution

The fourth proportional to 28,257.39, 42,386.48 and 8,536.11 is: 12,804.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.39 : 42,386.48 = 8,536.11 : x
  2. Step 2: Convert to fraction form
    28,257.39/42,386.48 = 8,536.11/x
  3. Step 3: Cross multiply
    28,257.39x = 42,386.48 × 8,536.11
  4. Step 4: Simplify right side
    28,257.39x = 361,815,783.10
  5. Step 5: Solve for x
    x = 361,815,783.10/28,257.39
  6. Step 6: Final answer
    x = 12,804.29

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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.