Home / 30,390.06-45,605.45-10,668.66

Finding the Fourth Proportional to 30,390.06, 45,605.45 and 10,668.66

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Solution

The fourth proportional to 30,390.06, 45,605.45 and 10,668.66 is: 16,010.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.06 : 45,605.45 = 10,668.66 : x
  2. Step 2: Convert to fraction form
    30,390.06/45,605.45 = 10,668.66/x
  3. Step 3: Cross multiply
    30,390.06x = 45,605.45 × 10,668.66
  4. Step 4: Simplify right side
    30,390.06x = 486,548,986.85
  5. Step 5: Solve for x
    x = 486,548,986.85/30,390.06
  6. Step 6: Final answer
    x = 16,010.14

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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.