Home / 21,740.25-30,001.55-11,804.25

Finding the Fourth Proportional to 21,740.25, 30,001.55 and 11,804.25

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Solution

The fourth proportional to 21,740.25, 30,001.55 and 11,804.25 is: 16,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,740.25 : 30,001.55 = 11,804.25 : x
  2. Step 2: Convert to fraction form
    21,740.25/30,001.55 = 11,804.25/x
  3. Step 3: Cross multiply
    21,740.25x = 30,001.55 × 11,804.25
  4. Step 4: Simplify right side
    21,740.25x = 354,145,737.57
  5. Step 5: Solve for x
    x = 354,145,737.57/21,740.25
  6. Step 6: Final answer
    x = 16,289.87

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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.