Home / 28,445.88-42,668.81-7,669.38

Finding the Fourth Proportional to 28,445.88, 42,668.81 and 7,669.38

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Solution

The fourth proportional to 28,445.88, 42,668.81 and 7,669.38 is: 11,504.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.88 : 42,668.81 = 7,669.38 : x
  2. Step 2: Convert to fraction form
    28,445.88/42,668.81 = 7,669.38/x
  3. Step 3: Cross multiply
    28,445.88x = 42,668.81 × 7,669.38
  4. Step 4: Simplify right side
    28,445.88x = 327,243,318.04
  5. Step 5: Solve for x
    x = 327,243,318.04/28,445.88
  6. Step 6: Final answer
    x = 11,504.07

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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.