Home / 30,302.61-45,453.86-13,643.18

Finding the Fourth Proportional to 30,302.61, 45,453.86 and 13,643.18

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Solution

The fourth proportional to 30,302.61, 45,453.86 and 13,643.18 is: 20,464.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.61 : 45,453.86 = 13,643.18 : x
  2. Step 2: Convert to fraction form
    30,302.61/45,453.86 = 13,643.18/x
  3. Step 3: Cross multiply
    30,302.61x = 45,453.86 × 13,643.18
  4. Step 4: Simplify right side
    30,302.61x = 620,135,193.67
  5. Step 5: Solve for x
    x = 620,135,193.67/30,302.61
  6. Step 6: Final answer
    x = 20,464.75

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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.