Home / 20,152.76-27,802.44-13,769.03

Finding the Fourth Proportional to 20,152.76, 27,802.44 and 13,769.03

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Solution

The fourth proportional to 20,152.76, 27,802.44 and 13,769.03 is: 18,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.76 : 27,802.44 = 13,769.03 : x
  2. Step 2: Convert to fraction form
    20,152.76/27,802.44 = 13,769.03/x
  3. Step 3: Cross multiply
    20,152.76x = 27,802.44 × 13,769.03
  4. Step 4: Simplify right side
    20,152.76x = 382,812,491.42
  5. Step 5: Solve for x
    x = 382,812,491.42/20,152.76
  6. Step 6: Final answer
    x = 18,995.54

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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.