Home / 30,390.17-45,605.62-10,668.79

Finding the Fourth Proportional to 30,390.17, 45,605.62 and 10,668.79

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Solution

The fourth proportional to 30,390.17, 45,605.62 and 10,668.79 is: 16,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.17 : 45,605.62 = 10,668.79 : x
  2. Step 2: Convert to fraction form
    30,390.17/45,605.62 = 10,668.79/x
  3. Step 3: Cross multiply
    30,390.17x = 45,605.62 × 10,668.79
  4. Step 4: Simplify right side
    30,390.17x = 486,556,554.57
  5. Step 5: Solve for x
    x = 486,556,554.57/30,390.17
  6. Step 6: Final answer
    x = 16,010.33

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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.