Home / 20,317.39-30,456.09-11,873.18

Finding the Fourth Proportional to 20,317.39, 30,456.09 and 11,873.18

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Solution

The fourth proportional to 20,317.39, 30,456.09 and 11,873.18 is: 17,798.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.39 : 30,456.09 = 11,873.18 : x
  2. Step 2: Convert to fraction form
    20,317.39/30,456.09 = 11,873.18/x
  3. Step 3: Cross multiply
    20,317.39x = 30,456.09 × 11,873.18
  4. Step 4: Simplify right side
    20,317.39x = 361,610,486.39
  5. Step 5: Solve for x
    x = 361,610,486.39/20,317.39
  6. Step 6: Final answer
    x = 17,798.08

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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.