Home / 28,871.16-39,828.48-18,795.96

Finding the Fourth Proportional to 28,871.16, 39,828.48 and 18,795.96

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Solution

The fourth proportional to 28,871.16, 39,828.48 and 18,795.96 is: 25,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.16 : 39,828.48 = 18,795.96 : x
  2. Step 2: Convert to fraction form
    28,871.16/39,828.48 = 18,795.96/x
  3. Step 3: Cross multiply
    28,871.16x = 39,828.48 × 18,795.96
  4. Step 4: Simplify right side
    28,871.16x = 748,614,516.94
  5. Step 5: Solve for x
    x = 748,614,516.94/28,871.16
  6. Step 6: Final answer
    x = 25,929.49

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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.