Home / 28,418.88-42,623.16-7,637.52

Finding the Fourth Proportional to 28,418.88, 42,623.16 and 7,637.52

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Solution

The fourth proportional to 28,418.88, 42,623.16 and 7,637.52 is: 11,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.88 : 42,623.16 = 7,637.52 : x
  2. Step 2: Convert to fraction form
    28,418.88/42,623.16 = 7,637.52/x
  3. Step 3: Cross multiply
    28,418.88x = 42,623.16 × 7,637.52
  4. Step 4: Simplify right side
    28,418.88x = 325,535,236.96
  5. Step 5: Solve for x
    x = 325,535,236.96/28,418.88
  6. Step 6: Final answer
    x = 11,454.89

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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.