Home / 20,592.96-28,418.72-11,639.93

Finding the Fourth Proportional to 20,592.96, 28,418.72 and 11,639.93

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Solution

The fourth proportional to 20,592.96, 28,418.72 and 11,639.93 is: 16,063.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.96 : 28,418.72 = 11,639.93 : x
  2. Step 2: Convert to fraction form
    20,592.96/28,418.72 = 11,639.93/x
  3. Step 3: Cross multiply
    20,592.96x = 28,418.72 × 11,639.93
  4. Step 4: Simplify right side
    20,592.96x = 330,791,790.37
  5. Step 5: Solve for x
    x = 330,791,790.37/20,592.96
  6. Step 6: Final answer
    x = 16,063.35

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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.