Home / 19,683.48-29,516.66-5,640.41

Finding the Fourth Proportional to 19,683.48, 29,516.66 and 5,640.41

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Solution

The fourth proportional to 19,683.48, 29,516.66 and 5,640.41 is: 8,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,683.48 : 29,516.66 = 5,640.41 : x
  2. Step 2: Convert to fraction form
    19,683.48/29,516.66 = 5,640.41/x
  3. Step 3: Cross multiply
    19,683.48x = 29,516.66 × 5,640.41
  4. Step 4: Simplify right side
    19,683.48x = 166,486,152.12
  5. Step 5: Solve for x
    x = 166,486,152.12/19,683.48
  6. Step 6: Final answer
    x = 8,458.17

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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.