Home / 20,583.78-30,875.46-5,792.70

Finding the Fourth Proportional to 20,583.78, 30,875.46 and 5,792.70

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Solution

The fourth proportional to 20,583.78, 30,875.46 and 5,792.70 is: 8,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.78 : 30,875.46 = 5,792.70 : x
  2. Step 2: Convert to fraction form
    20,583.78/30,875.46 = 5,792.70/x
  3. Step 3: Cross multiply
    20,583.78x = 30,875.46 × 5,792.70
  4. Step 4: Simplify right side
    20,583.78x = 178,852,277.14
  5. Step 5: Solve for x
    x = 178,852,277.14/20,583.78
  6. Step 6: Final answer
    x = 8,688.99

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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.