Home / 28,391.88-42,587.82-8,669.37

Finding the Fourth Proportional to 28,391.88, 42,587.82 and 8,669.37

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Solution

The fourth proportional to 28,391.88, 42,587.82 and 8,669.37 is: 13,004.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,391.88 : 42,587.82 = 8,669.37 : x
  2. Step 2: Convert to fraction form
    28,391.88/42,587.82 = 8,669.37/x
  3. Step 3: Cross multiply
    28,391.88x = 42,587.82 × 8,669.37
  4. Step 4: Simplify right side
    28,391.88x = 369,209,569.07
  5. Step 5: Solve for x
    x = 369,209,569.07/28,391.88
  6. Step 6: Final answer
    x = 13,004.06

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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.