Home / 28,330.88-42,497.21-8,609.60

Finding the Fourth Proportional to 28,330.88, 42,497.21 and 8,609.60

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Solution

The fourth proportional to 28,330.88, 42,497.21 and 8,609.60 is: 12,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.88 : 42,497.21 = 8,609.60 : x
  2. Step 2: Convert to fraction form
    28,330.88/42,497.21 = 8,609.60/x
  3. Step 3: Cross multiply
    28,330.88x = 42,497.21 × 8,609.60
  4. Step 4: Simplify right side
    28,330.88x = 365,884,106.98
  5. Step 5: Solve for x
    x = 365,884,106.98/28,330.88
  6. Step 6: Final answer
    x = 12,914.68

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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.