Home / 19,521.78-29,284.64-5,481.84

Finding the Fourth Proportional to 19,521.78, 29,284.64 and 5,481.84

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Solution

The fourth proportional to 19,521.78, 29,284.64 and 5,481.84 is: 8,223.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.78 : 29,284.64 = 5,481.84 : x
  2. Step 2: Convert to fraction form
    19,521.78/29,284.64 = 5,481.84/x
  3. Step 3: Cross multiply
    19,521.78x = 29,284.64 × 5,481.84
  4. Step 4: Simplify right side
    19,521.78x = 160,533,683.53
  5. Step 5: Solve for x
    x = 160,533,683.53/19,521.78
  6. Step 6: Final answer
    x = 8,223.31

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1.5x scale

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.