Home / 28,336.45-42,507.05-8,615.18

Finding the Fourth Proportional to 28,336.45, 42,507.05 and 8,615.18

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Solution

The fourth proportional to 28,336.45, 42,507.05 and 8,615.18 is: 12,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,336.45 : 42,507.05 = 8,615.18 : x
  2. Step 2: Convert to fraction form
    28,336.45/42,507.05 = 8,615.18/x
  3. Step 3: Cross multiply
    28,336.45x = 42,507.05 × 8,615.18
  4. Step 4: Simplify right side
    28,336.45x = 366,205,780.75
  5. Step 5: Solve for x
    x = 366,205,780.75/28,336.45
  6. Step 6: Final answer
    x = 12,923.49

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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.