Home / 21,388.56-32,051.64-12,031.19

Finding the Fourth Proportional to 21,388.56, 32,051.64 and 12,031.19

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Solution

The fourth proportional to 21,388.56, 32,051.64 and 12,031.19 is: 18,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.56 : 32,051.64 = 12,031.19 : x
  2. Step 2: Convert to fraction form
    21,388.56/32,051.64 = 12,031.19/x
  3. Step 3: Cross multiply
    21,388.56x = 32,051.64 × 12,031.19
  4. Step 4: Simplify right side
    21,388.56x = 385,619,383.39
  5. Step 5: Solve for x
    x = 385,619,383.39/21,388.56
  6. Step 6: Final answer
    x = 18,029.23

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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.