Home / 21,509.37-32,260.82-7,278.21

Finding the Fourth Proportional to 21,509.37, 32,260.82 and 7,278.21

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Solution

The fourth proportional to 21,509.37, 32,260.82 and 7,278.21 is: 10,916.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509.37 : 32,260.82 = 7,278.21 : x
  2. Step 2: Convert to fraction form
    21,509.37/32,260.82 = 7,278.21/x
  3. Step 3: Cross multiply
    21,509.37x = 32,260.82 × 7,278.21
  4. Step 4: Simplify right side
    21,509.37x = 234,800,986.34
  5. Step 5: Solve for x
    x = 234,800,986.34/21,509.37
  6. Step 6: Final answer
    x = 10,916.22

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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.