Home / 25,864.47-38,784.42-11,820.33

Finding the Fourth Proportional to 25,864.47, 38,784.42 and 11,820.33

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Solution

The fourth proportional to 25,864.47, 38,784.42 and 11,820.33 is: 17,724.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,864.47 : 38,784.42 = 11,820.33 : x
  2. Step 2: Convert to fraction form
    25,864.47/38,784.42 = 11,820.33/x
  3. Step 3: Cross multiply
    25,864.47x = 38,784.42 × 11,820.33
  4. Step 4: Simplify right side
    25,864.47x = 458,444,643.26
  5. Step 5: Solve for x
    x = 458,444,643.26/25,864.47
  6. Step 6: Final answer
    x = 17,724.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.