Home / 19,025.80-28,564.35-11,136.40

Finding the Fourth Proportional to 19,025.80, 28,564.35 and 11,136.40

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Solution

The fourth proportional to 19,025.80, 28,564.35 and 11,136.40 is: 16,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,025.80 : 28,564.35 = 11,136.40 : x
  2. Step 2: Convert to fraction form
    19,025.80/28,564.35 = 11,136.40/x
  3. Step 3: Cross multiply
    19,025.80x = 28,564.35 × 11,136.40
  4. Step 4: Simplify right side
    19,025.80x = 318,104,027.34
  5. Step 5: Solve for x
    x = 318,104,027.34/19,025.80
  6. Step 6: Final answer
    x = 16,719.61

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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.