Home / 30,379.47-45,567.79-10,658.19

Finding the Fourth Proportional to 30,379.47, 45,567.79 and 10,658.19

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Solution

The fourth proportional to 30,379.47, 45,567.79 and 10,658.19 is: 15,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.47 : 45,567.79 = 10,658.19 : x
  2. Step 2: Convert to fraction form
    30,379.47/45,567.79 = 10,658.19/x
  3. Step 3: Cross multiply
    30,379.47x = 45,567.79 × 10,658.19
  4. Step 4: Simplify right side
    30,379.47x = 485,670,163.70
  5. Step 5: Solve for x
    x = 485,670,163.70/30,379.47
  6. Step 6: Final answer
    x = 15,986.79

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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.