Home / 20,317.03-28,036.94-11,364.57

Finding the Fourth Proportional to 20,317.03, 28,036.94 and 11,364.57

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Solution

The fourth proportional to 20,317.03, 28,036.94 and 11,364.57 is: 15,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.03 : 28,036.94 = 11,364.57 : x
  2. Step 2: Convert to fraction form
    20,317.03/28,036.94 = 11,364.57/x
  3. Step 3: Cross multiply
    20,317.03x = 28,036.94 × 11,364.57
  4. Step 4: Simplify right side
    20,317.03x = 318,627,710.39
  5. Step 5: Solve for x
    x = 318,627,710.39/20,317.03
  6. Step 6: Final answer
    x = 15,682.79

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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.