Home / 19,636.80-29,455.20-13,041.60

Finding the Fourth Proportional to 19,636.80, 29,455.20 and 13,041.60

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Solution

The fourth proportional to 19,636.80, 29,455.20 and 13,041.60 is: 19,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.80 : 29,455.20 = 13,041.60 : x
  2. Step 2: Convert to fraction form
    19,636.80/29,455.20 = 13,041.60/x
  3. Step 3: Cross multiply
    19,636.80x = 29,455.20 × 13,041.60
  4. Step 4: Simplify right side
    19,636.80x = 384,142,936.32
  5. Step 5: Solve for x
    x = 384,142,936.32/19,636.80
  6. Step 6: Final answer
    x = 19,562.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.