Home / 30,039.68-45,059.88-18,196.04

Finding the Fourth Proportional to 30,039.68, 45,059.88 and 18,196.04

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Solution

The fourth proportional to 30,039.68, 45,059.88 and 18,196.04 is: 27,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,039.68 : 45,059.88 = 18,196.04 : x
  2. Step 2: Convert to fraction form
    30,039.68/45,059.88 = 18,196.04/x
  3. Step 3: Cross multiply
    30,039.68x = 45,059.88 × 18,196.04
  4. Step 4: Simplify right side
    30,039.68x = 819,911,378.88
  5. Step 5: Solve for x
    x = 819,911,378.88/30,039.68
  6. Step 6: Final answer
    x = 27,294.28

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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.