Home / 25,523.24-38,235.65-21,357

Finding the Fourth Proportional to 25,523.24, 38,235.65 and 21,357

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Solution

The fourth proportional to 25,523.24, 38,235.65 and 21,357 is: 31,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,523.24 : 38,235.65 = 21,357 : x
  2. Step 2: Convert to fraction form
    25,523.24/38,235.65 = 21,357/x
  3. Step 3: Cross multiply
    25,523.24x = 38,235.65 × 21,357
  4. Step 4: Simplify right side
    25,523.24x = 816,598,670.27
  5. Step 5: Solve for x
    x = 816,598,670.27/25,523.24
  6. Step 6: Final answer
    x = 31,994.32

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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.