Home / 28,357.25-42,537.63-8,637.26

Finding the Fourth Proportional to 28,357.25, 42,537.63 and 8,637.26

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Solution

The fourth proportional to 28,357.25, 42,537.63 and 8,637.26 is: 12,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.25 : 42,537.63 = 8,637.26 : x
  2. Step 2: Convert to fraction form
    28,357.25/42,537.63 = 8,637.26/x
  3. Step 3: Cross multiply
    28,357.25x = 42,537.63 × 8,637.26
  4. Step 4: Simplify right side
    28,357.25x = 367,408,570.09
  5. Step 5: Solve for x
    x = 367,408,570.09/28,357.25
  6. Step 6: Final answer
    x = 12,956.42

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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.