Home / 30,653.16-45,992.70-13,131.24

Finding the Fourth Proportional to 30,653.16, 45,992.70 and 13,131.24

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Solution

The fourth proportional to 30,653.16, 45,992.70 and 13,131.24 is: 19,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653.16 : 45,992.70 = 13,131.24 : x
  2. Step 2: Convert to fraction form
    30,653.16/45,992.70 = 13,131.24/x
  3. Step 3: Cross multiply
    30,653.16x = 45,992.70 × 13,131.24
  4. Step 4: Simplify right side
    30,653.16x = 603,941,181.95
  5. Step 5: Solve for x
    x = 603,941,181.95/30,653.16
  6. Step 6: Final answer
    x = 19,702.41

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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.