Home / 20,893.04-28,832.84-11,461.60

Finding the Fourth Proportional to 20,893.04, 28,832.84 and 11,461.60

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Solution

The fourth proportional to 20,893.04, 28,832.84 and 11,461.60 is: 15,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.04 : 28,832.84 = 11,461.60 : x
  2. Step 2: Convert to fraction form
    20,893.04/28,832.84 = 11,461.60/x
  3. Step 3: Cross multiply
    20,893.04x = 28,832.84 × 11,461.60
  4. Step 4: Simplify right side
    20,893.04x = 330,470,435.52
  5. Step 5: Solve for x
    x = 330,470,435.52/20,893.04
  6. Step 6: Final answer
    x = 15,817.25

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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.