Home / 21,485.25-32,226.58-12,775.59

Finding the Fourth Proportional to 21,485.25, 32,226.58 and 12,775.59

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Solution

The fourth proportional to 21,485.25, 32,226.58 and 12,775.59 is: 19,162.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.25 : 32,226.58 = 12,775.59 : x
  2. Step 2: Convert to fraction form
    21,485.25/32,226.58 = 12,775.59/x
  3. Step 3: Cross multiply
    21,485.25x = 32,226.58 × 12,775.59
  4. Step 4: Simplify right side
    21,485.25x = 411,713,573.18
  5. Step 5: Solve for x
    x = 411,713,573.18/21,485.25
  6. Step 6: Final answer
    x = 19,162.61

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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.