Home / 21,933.07-30,267.55-11,861.52

Finding the Fourth Proportional to 21,933.07, 30,267.55 and 11,861.52

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Solution

The fourth proportional to 21,933.07, 30,267.55 and 11,861.52 is: 16,368.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.07 : 30,267.55 = 11,861.52 : x
  2. Step 2: Convert to fraction form
    21,933.07/30,267.55 = 11,861.52/x
  3. Step 3: Cross multiply
    21,933.07x = 30,267.55 × 11,861.52
  4. Step 4: Simplify right side
    21,933.07x = 359,019,249.63
  5. Step 5: Solve for x
    x = 359,019,249.63/21,933.07
  6. Step 6: Final answer
    x = 16,368.85

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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.