Home / 20,941.35-28,890.84-11,984.07

Finding the Fourth Proportional to 20,941.35, 28,890.84 and 11,984.07

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Solution

The fourth proportional to 20,941.35, 28,890.84 and 11,984.07 is: 16,533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.35 : 28,890.84 = 11,984.07 : x
  2. Step 2: Convert to fraction form
    20,941.35/28,890.84 = 11,984.07/x
  3. Step 3: Cross multiply
    20,941.35x = 28,890.84 × 11,984.07
  4. Step 4: Simplify right side
    20,941.35x = 346,229,848.92
  5. Step 5: Solve for x
    x = 346,229,848.92/20,941.35
  6. Step 6: Final answer
    x = 16,533.31

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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.