Home / 18,403.75-25,397.72-10,020.79

Finding the Fourth Proportional to 18,403.75, 25,397.72 and 10,020.79

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Solution

The fourth proportional to 18,403.75, 25,397.72 and 10,020.79 is: 13,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.75 : 25,397.72 = 10,020.79 : x
  2. Step 2: Convert to fraction form
    18,403.75/25,397.72 = 10,020.79/x
  3. Step 3: Cross multiply
    18,403.75x = 25,397.72 × 10,020.79
  4. Step 4: Simplify right side
    18,403.75x = 254,505,218.60
  5. Step 5: Solve for x
    x = 254,505,218.60/18,403.75
  6. Step 6: Final answer
    x = 13,828.99

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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.