Home / 31,178.80-46,788.66-11,457.52

Finding the Fourth Proportional to 31,178.80, 46,788.66 and 11,457.52

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Solution

The fourth proportional to 31,178.80, 46,788.66 and 11,457.52 is: 17,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.80 : 46,788.66 = 11,457.52 : x
  2. Step 2: Convert to fraction form
    31,178.80/46,788.66 = 11,457.52/x
  3. Step 3: Cross multiply
    31,178.80x = 46,788.66 × 11,457.52
  4. Step 4: Simplify right side
    31,178.80x = 536,082,007.72
  5. Step 5: Solve for x
    x = 536,082,007.72/31,178.80
  6. Step 6: Final answer
    x = 17,193.80

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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.