Home / 28,675.13-43,012.70-8,955.38

Finding the Fourth Proportional to 28,675.13, 43,012.70 and 8,955.38

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Solution

The fourth proportional to 28,675.13, 43,012.70 and 8,955.38 is: 13,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.13 : 43,012.70 = 8,955.38 : x
  2. Step 2: Convert to fraction form
    28,675.13/43,012.70 = 8,955.38/x
  3. Step 3: Cross multiply
    28,675.13x = 43,012.70 × 8,955.38
  4. Step 4: Simplify right side
    28,675.13x = 385,194,813.49
  5. Step 5: Solve for x
    x = 385,194,813.49/28,675.13
  6. Step 6: Final answer
    x = 13,433.06

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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.