Home / 30,808.06-42,514.16-17,379.12

Finding the Fourth Proportional to 30,808.06, 42,514.16 and 17,379.12

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Solution

The fourth proportional to 30,808.06, 42,514.16 and 17,379.12 is: 23,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.06 : 42,514.16 = 17,379.12 : x
  2. Step 2: Convert to fraction form
    30,808.06/42,514.16 = 17,379.12/x
  3. Step 3: Cross multiply
    30,808.06x = 42,514.16 × 17,379.12
  4. Step 4: Simplify right side
    30,808.06x = 738,858,688.34
  5. Step 5: Solve for x
    x = 738,858,688.34/30,808.06
  6. Step 6: Final answer
    x = 23,982.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.