Home / 30,741.20-46,153.26-19,669.50

Finding the Fourth Proportional to 30,741.20, 46,153.26 and 19,669.50

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Solution

The fourth proportional to 30,741.20, 46,153.26 and 19,669.50 is: 29,530.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,741.20 : 46,153.26 = 19,669.50 : x
  2. Step 2: Convert to fraction form
    30,741.20/46,153.26 = 19,669.50/x
  3. Step 3: Cross multiply
    30,741.20x = 46,153.26 × 19,669.50
  4. Step 4: Simplify right side
    30,741.20x = 907,811,547.57
  5. Step 5: Solve for x
    x = 907,811,547.57/30,741.20
  6. Step 6: Final answer
    x = 29,530.78

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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.