Home / 21,751.96-30,001.08-18,732.31

Finding the Fourth Proportional to 21,751.96, 30,001.08 and 18,732.31

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Solution

The fourth proportional to 21,751.96, 30,001.08 and 18,732.31 is: 25,836.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,751.96 : 30,001.08 = 18,732.31 : x
  2. Step 2: Convert to fraction form
    21,751.96/30,001.08 = 18,732.31/x
  3. Step 3: Cross multiply
    21,751.96x = 30,001.08 × 18,732.31
  4. Step 4: Simplify right side
    21,751.96x = 561,989,530.89
  5. Step 5: Solve for x
    x = 561,989,530.89/21,751.96
  6. Step 6: Final answer
    x = 25,836.27

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1.5x scale

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.