Home / 25,664.72-38,409.44-21,509.42

Finding the Fourth Proportional to 25,664.72, 38,409.44 and 21,509.42

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Solution

The fourth proportional to 25,664.72, 38,409.44 and 21,509.42 is: 32,190.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,664.72 : 38,409.44 = 21,509.42 : x
  2. Step 2: Convert to fraction form
    25,664.72/38,409.44 = 21,509.42/x
  3. Step 3: Cross multiply
    25,664.72x = 38,409.44 × 21,509.42
  4. Step 4: Simplify right side
    25,664.72x = 826,164,776.92
  5. Step 5: Solve for x
    x = 826,164,776.92/25,664.72
  6. Step 6: Final answer
    x = 32,190.68

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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.