Home / 42,849.96-64,281.06-13,270.44

Finding the Fourth Proportional to 42,849.96, 64,281.06 and 13,270.44

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Solution

The fourth proportional to 42,849.96, 64,281.06 and 13,270.44 is: 19,907.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,849.96 : 64,281.06 = 13,270.44 : x
  2. Step 2: Convert to fraction form
    42,849.96/64,281.06 = 13,270.44/x
  3. Step 3: Cross multiply
    42,849.96x = 64,281.06 × 13,270.44
  4. Step 4: Simplify right side
    42,849.96x = 853,037,949.87
  5. Step 5: Solve for x
    x = 853,037,949.87/42,849.96
  6. Step 6: Final answer
    x = 19,907.56

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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.