Home / 42,441.87-63,647.75-12,447.77

Finding the Fourth Proportional to 42,441.87, 63,647.75 and 12,447.77

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Solution

The fourth proportional to 42,441.87, 63,647.75 and 12,447.77 is: 18,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,441.87 : 63,647.75 = 12,447.77 : x
  2. Step 2: Convert to fraction form
    42,441.87/63,647.75 = 12,447.77/x
  3. Step 3: Cross multiply
    42,441.87x = 63,647.75 × 12,447.77
  4. Step 4: Simplify right side
    42,441.87x = 792,272,743.26
  5. Step 5: Solve for x
    x = 792,272,743.26/42,441.87
  6. Step 6: Final answer
    x = 18,667.24

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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.