Home / 19,811.78-29,737.21-13,467.25

Finding the Fourth Proportional to 19,811.78, 29,737.21 and 13,467.25

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Solution

The fourth proportional to 19,811.78, 29,737.21 and 13,467.25 is: 20,214.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.78 : 29,737.21 = 13,467.25 : x
  2. Step 2: Convert to fraction form
    19,811.78/29,737.21 = 13,467.25/x
  3. Step 3: Cross multiply
    19,811.78x = 29,737.21 × 13,467.25
  4. Step 4: Simplify right side
    19,811.78x = 400,478,441.37
  5. Step 5: Solve for x
    x = 400,478,441.37/19,811.78
  6. Step 6: Final answer
    x = 20,214.16

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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.