Home / 21,757.37-32,638.32-9,278.71

Finding the Fourth Proportional to 21,757.37, 32,638.32 and 9,278.71

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Solution

The fourth proportional to 21,757.37, 32,638.32 and 9,278.71 is: 13,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,757.37 : 32,638.32 = 9,278.71 : x
  2. Step 2: Convert to fraction form
    21,757.37/32,638.32 = 9,278.71/x
  3. Step 3: Cross multiply
    21,757.37x = 32,638.32 × 9,278.71
  4. Step 4: Simplify right side
    21,757.37x = 302,841,424.57
  5. Step 5: Solve for x
    x = 302,841,424.57/21,757.37
  6. Step 6: Final answer
    x = 13,919.03

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1.5x scale

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.