Home / 25,820.78-35,634.13-14,489.69

Finding the Fourth Proportional to 25,820.78, 35,634.13 and 14,489.69

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Solution

The fourth proportional to 25,820.78, 35,634.13 and 14,489.69 is: 19,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.78 : 35,634.13 = 14,489.69 : x
  2. Step 2: Convert to fraction form
    25,820.78/35,634.13 = 14,489.69/x
  3. Step 3: Cross multiply
    25,820.78x = 35,634.13 × 14,489.69
  4. Step 4: Simplify right side
    25,820.78x = 516,327,282.72
  5. Step 5: Solve for x
    x = 516,327,282.72/25,820.78
  6. Step 6: Final answer
    x = 19,996.58

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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.