Home / 19,478.64-29,137.32-15,590.64

Finding the Fourth Proportional to 19,478.64, 29,137.32 and 15,590.64

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Solution

The fourth proportional to 19,478.64, 29,137.32 and 15,590.64 is: 23,321.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.64 : 29,137.32 = 15,590.64 : x
  2. Step 2: Convert to fraction form
    19,478.64/29,137.32 = 15,590.64/x
  3. Step 3: Cross multiply
    19,478.64x = 29,137.32 × 15,590.64
  4. Step 4: Simplify right side
    19,478.64x = 454,269,466.68
  5. Step 5: Solve for x
    x = 454,269,466.68/19,478.64
  6. Step 6: Final answer
    x = 23,321.42

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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.