Home / 28,334.89-42,507.20-8,615.44

Finding the Fourth Proportional to 28,334.89, 42,507.20 and 8,615.44

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Solution

The fourth proportional to 28,334.89, 42,507.20 and 8,615.44 is: 12,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.89 : 42,507.20 = 8,615.44 : x
  2. Step 2: Convert to fraction form
    28,334.89/42,507.20 = 8,615.44/x
  3. Step 3: Cross multiply
    28,334.89x = 42,507.20 × 8,615.44
  4. Step 4: Simplify right side
    28,334.89x = 366,218,231.17
  5. Step 5: Solve for x
    x = 366,218,231.17/28,334.89
  6. Step 6: Final answer
    x = 12,924.64

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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.