Home / 20,152.55-27,802.56-11,653.12

Finding the Fourth Proportional to 20,152.55, 27,802.56 and 11,653.12

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Solution

The fourth proportional to 20,152.55, 27,802.56 and 11,653.12 is: 16,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.55 : 27,802.56 = 11,653.12 : x
  2. Step 2: Convert to fraction form
    20,152.55/27,802.56 = 11,653.12/x
  3. Step 3: Cross multiply
    20,152.55x = 27,802.56 × 11,653.12
  4. Step 4: Simplify right side
    20,152.55x = 323,986,567.99
  5. Step 5: Solve for x
    x = 323,986,567.99/20,152.55
  6. Step 6: Final answer
    x = 16,076.70

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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.