Home / 21,929.39-32,838.03-12,057.81

Finding the Fourth Proportional to 21,929.39, 32,838.03 and 12,057.81

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Solution

The fourth proportional to 21,929.39, 32,838.03 and 12,057.81 is: 18,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.39 : 32,838.03 = 12,057.81 : x
  2. Step 2: Convert to fraction form
    21,929.39/32,838.03 = 12,057.81/x
  3. Step 3: Cross multiply
    21,929.39x = 32,838.03 × 12,057.81
  4. Step 4: Simplify right side
    21,929.39x = 395,954,726.51
  5. Step 5: Solve for x
    x = 395,954,726.51/21,929.39
  6. Step 6: Final answer
    x = 18,055.90

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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.