Home / 19,974.08-29,961.12-10,113.60

Finding the Fourth Proportional to 19,974.08, 29,961.12 and 10,113.60

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Solution

The fourth proportional to 19,974.08, 29,961.12 and 10,113.60 is: 15,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.08 : 29,961.12 = 10,113.60 : x
  2. Step 2: Convert to fraction form
    19,974.08/29,961.12 = 10,113.60/x
  3. Step 3: Cross multiply
    19,974.08x = 29,961.12 × 10,113.60
  4. Step 4: Simplify right side
    19,974.08x = 303,014,783.23
  5. Step 5: Solve for x
    x = 303,014,783.23/19,974.08
  6. Step 6: Final answer
    x = 15,170.40

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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.