Home / 19,639.20-27,096.48-12,559.80

Finding the Fourth Proportional to 19,639.20, 27,096.48 and 12,559.80

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Solution

The fourth proportional to 19,639.20, 27,096.48 and 12,559.80 is: 17,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.20 : 27,096.48 = 12,559.80 : x
  2. Step 2: Convert to fraction form
    19,639.20/27,096.48 = 12,559.80/x
  3. Step 3: Cross multiply
    19,639.20x = 27,096.48 × 12,559.80
  4. Step 4: Simplify right side
    19,639.20x = 340,326,369.50
  5. Step 5: Solve for x
    x = 340,326,369.50/19,639.20
  6. Step 6: Final answer
    x = 17,328.93

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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.