Home / 29,580.72-40,840.92-18,975.12

Finding the Fourth Proportional to 29,580.72, 40,840.92 and 18,975.12

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Solution

The fourth proportional to 29,580.72, 40,840.92 and 18,975.12 is: 26,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,580.72 : 40,840.92 = 18,975.12 : x
  2. Step 2: Convert to fraction form
    29,580.72/40,840.92 = 18,975.12/x
  3. Step 3: Cross multiply
    29,580.72x = 40,840.92 × 18,975.12
  4. Step 4: Simplify right side
    29,580.72x = 774,961,357.91
  5. Step 5: Solve for x
    x = 774,961,357.91/29,580.72
  6. Step 6: Final answer
    x = 26,198.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.