Home / 28,336.96-42,505.50-8,615.56

Finding the Fourth Proportional to 28,336.96, 42,505.50 and 8,615.56

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Solution

The fourth proportional to 28,336.96, 42,505.50 and 8,615.56 is: 12,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.96 : 42,505.50 = 8,615.56 : x
  2. Step 2: Convert to fraction form
    28,336.96/42,505.50 = 8,615.56/x
  3. Step 3: Cross multiply
    28,336.96x = 42,505.50 × 8,615.56
  4. Step 4: Simplify right side
    28,336.96x = 366,208,685.58
  5. Step 5: Solve for x
    x = 366,208,685.58/28,336.96
  6. Step 6: Final answer
    x = 12,923.36

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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.