Home / 25,456.23-35,129.07-13,971.42

Finding the Fourth Proportional to 25,456.23, 35,129.07 and 13,971.42

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Solution

The fourth proportional to 25,456.23, 35,129.07 and 13,971.42 is: 19,280.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,456.23 : 35,129.07 = 13,971.42 : x
  2. Step 2: Convert to fraction form
    25,456.23/35,129.07 = 13,971.42/x
  3. Step 3: Cross multiply
    25,456.23x = 35,129.07 × 13,971.42
  4. Step 4: Simplify right side
    25,456.23x = 490,802,991.18
  5. Step 5: Solve for x
    x = 490,802,991.18/25,456.23
  6. Step 6: Final answer
    x = 19,280.27

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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.