Home / 21,485.05-32,219.85-7,441.30

Finding the Fourth Proportional to 21,485.05, 32,219.85 and 7,441.30

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Solution

The fourth proportional to 21,485.05, 32,219.85 and 7,441.30 is: 11,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.05 : 32,219.85 = 7,441.30 : x
  2. Step 2: Convert to fraction form
    21,485.05/32,219.85 = 7,441.30/x
  3. Step 3: Cross multiply
    21,485.05x = 32,219.85 × 7,441.30
  4. Step 4: Simplify right side
    21,485.05x = 239,757,507.86
  5. Step 5: Solve for x
    x = 239,757,507.86/21,485.05
  6. Step 6: Final answer
    x = 11,159.27

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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.