Home / 30,890.36-46,299.69-14,215.38

Finding the Fourth Proportional to 30,890.36, 46,299.69 and 14,215.38

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Solution

The fourth proportional to 30,890.36, 46,299.69 and 14,215.38 is: 21,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.36 : 46,299.69 = 14,215.38 : x
  2. Step 2: Convert to fraction form
    30,890.36/46,299.69 = 14,215.38/x
  3. Step 3: Cross multiply
    30,890.36x = 46,299.69 × 14,215.38
  4. Step 4: Simplify right side
    30,890.36x = 658,167,687.23
  5. Step 5: Solve for x
    x = 658,167,687.23/30,890.36
  6. Step 6: Final answer
    x = 21,306.58

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1.5x scale

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.