Home / 15,403.30-23,072.55-12,811.30

Finding the Fourth Proportional to 15,403.30, 23,072.55 and 12,811.30

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Solution

The fourth proportional to 15,403.30, 23,072.55 and 12,811.30 is: 19,190.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,403.30 : 23,072.55 = 12,811.30 : x
  2. Step 2: Convert to fraction form
    15,403.30/23,072.55 = 12,811.30/x
  3. Step 3: Cross multiply
    15,403.30x = 23,072.55 × 12,811.30
  4. Step 4: Simplify right side
    15,403.30x = 295,589,359.82
  5. Step 5: Solve for x
    x = 295,589,359.82/15,403.30
  6. Step 6: Final answer
    x = 19,190.00

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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.