Home / 39,298.21-54,231.53-21,393.35

Finding the Fourth Proportional to 39,298.21, 54,231.53 and 21,393.35

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Solution

The fourth proportional to 39,298.21, 54,231.53 and 21,393.35 is: 29,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,298.21 : 54,231.53 = 21,393.35 : x
  2. Step 2: Convert to fraction form
    39,298.21/54,231.53 = 21,393.35/x
  3. Step 3: Cross multiply
    39,298.21x = 54,231.53 × 21,393.35
  4. Step 4: Simplify right side
    39,298.21x = 1,160,194,102.33
  5. Step 5: Solve for x
    x = 1,160,194,102.33/39,298.21
  6. Step 6: Final answer
    x = 29,522.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.