Home / 28,292.13-42,427.60-8,297.49

Finding the Fourth Proportional to 28,292.13, 42,427.60 and 8,297.49

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Solution

The fourth proportional to 28,292.13, 42,427.60 and 8,297.49 is: 12,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.13 : 42,427.60 = 8,297.49 : x
  2. Step 2: Convert to fraction form
    28,292.13/42,427.60 = 8,297.49/x
  3. Step 3: Cross multiply
    28,292.13x = 42,427.60 × 8,297.49
  4. Step 4: Simplify right side
    28,292.13x = 352,042,437.99
  5. Step 5: Solve for x
    x = 352,042,437.99/28,292.13
  6. Step 6: Final answer
    x = 12,443.12

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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.