Home / 33,129.05-45,719.28-18,984.62

Finding the Fourth Proportional to 33,129.05, 45,719.28 and 18,984.62

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Solution

The fourth proportional to 33,129.05, 45,719.28 and 18,984.62 is: 26,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,129.05 : 45,719.28 = 18,984.62 : x
  2. Step 2: Convert to fraction form
    33,129.05/45,719.28 = 18,984.62/x
  3. Step 3: Cross multiply
    33,129.05x = 45,719.28 × 18,984.62
  4. Step 4: Simplify right side
    33,129.05x = 867,963,271.77
  5. Step 5: Solve for x
    x = 867,963,271.77/33,129.05
  6. Step 6: Final answer
    x = 26,199.47

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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.