Home / 28,450.88-42,671.16-7,669.52

Finding the Fourth Proportional to 28,450.88, 42,671.16 and 7,669.52

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Solution

The fourth proportional to 28,450.88, 42,671.16 and 7,669.52 is: 11,502.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.88 : 42,671.16 = 7,669.52 : x
  2. Step 2: Convert to fraction form
    28,450.88/42,671.16 = 7,669.52/x
  3. Step 3: Cross multiply
    28,450.88x = 42,671.16 × 7,669.52
  4. Step 4: Simplify right side
    28,450.88x = 327,267,315.04
  5. Step 5: Solve for x
    x = 327,267,315.04/28,450.88
  6. Step 6: Final answer
    x = 11,502.89

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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.