Home / 30,871.48-46,307.16-11,149.72

Finding the Fourth Proportional to 30,871.48, 46,307.16 and 11,149.72

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Solution

The fourth proportional to 30,871.48, 46,307.16 and 11,149.72 is: 16,724.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,871.48 : 46,307.16 = 11,149.72 : x
  2. Step 2: Convert to fraction form
    30,871.48/46,307.16 = 11,149.72/x
  3. Step 3: Cross multiply
    30,871.48x = 46,307.16 × 11,149.72
  4. Step 4: Simplify right side
    30,871.48x = 516,311,868.00
  5. Step 5: Solve for x
    x = 516,311,868.00/30,871.48
  6. Step 6: Final answer
    x = 16,724.56

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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.