Home / 25,784.07-35,575.38-15,171.72

Finding the Fourth Proportional to 25,784.07, 35,575.38 and 15,171.72

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Solution

The fourth proportional to 25,784.07, 35,575.38 and 15,171.72 is: 20,933.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.07 : 35,575.38 = 15,171.72 : x
  2. Step 2: Convert to fraction form
    25,784.07/35,575.38 = 15,171.72/x
  3. Step 3: Cross multiply
    25,784.07x = 35,575.38 × 15,171.72
  4. Step 4: Simplify right side
    25,784.07x = 539,739,704.25
  5. Step 5: Solve for x
    x = 539,739,704.25/25,784.07
  6. Step 6: Final answer
    x = 20,933.07

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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.