Home / 28,364.96-39,108.24-18,276

Finding the Fourth Proportional to 28,364.96, 39,108.24 and 18,276

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Solution

The fourth proportional to 28,364.96, 39,108.24 and 18,276 is: 25,198.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,364.96 : 39,108.24 = 18,276 : x
  2. Step 2: Convert to fraction form
    28,364.96/39,108.24 = 18,276/x
  3. Step 3: Cross multiply
    28,364.96x = 39,108.24 × 18,276
  4. Step 4: Simplify right side
    28,364.96x = 714,742,194.24
  5. Step 5: Solve for x
    x = 714,742,194.24/28,364.96
  6. Step 6: Final answer
    x = 25,198.07

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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.