Home / 23,780.21-35,667.24-8,987.20

Finding the Fourth Proportional to 23,780.21, 35,667.24 and 8,987.20

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Solution

The fourth proportional to 23,780.21, 35,667.24 and 8,987.20 is: 13,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,780.21 : 35,667.24 = 8,987.20 : x
  2. Step 2: Convert to fraction form
    23,780.21/35,667.24 = 8,987.20/x
  3. Step 3: Cross multiply
    23,780.21x = 35,667.24 × 8,987.20
  4. Step 4: Simplify right side
    23,780.21x = 320,548,697.09
  5. Step 5: Solve for x
    x = 320,548,697.09/23,780.21
  6. Step 6: Final answer
    x = 13,479.64

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1.5x scale

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.