Home / 21,904.38-32,825.73-12,530.34

Finding the Fourth Proportional to 21,904.38, 32,825.73 and 12,530.34

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Solution

The fourth proportional to 21,904.38, 32,825.73 and 12,530.34 is: 18,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.38 : 32,825.73 = 12,530.34 : x
  2. Step 2: Convert to fraction form
    21,904.38/32,825.73 = 12,530.34/x
  3. Step 3: Cross multiply
    21,904.38x = 32,825.73 × 12,530.34
  4. Step 4: Simplify right side
    21,904.38x = 411,317,557.65
  5. Step 5: Solve for x
    x = 411,317,557.65/21,904.38
  6. Step 6: Final answer
    x = 18,777.87

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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.