Home / 28,308.15-42,469.50-10,768.41

Finding the Fourth Proportional to 28,308.15, 42,469.50 and 10,768.41

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Solution

The fourth proportional to 28,308.15, 42,469.50 and 10,768.41 is: 16,155.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,308.15 : 42,469.50 = 10,768.41 : x
  2. Step 2: Convert to fraction form
    28,308.15/42,469.50 = 10,768.41/x
  3. Step 3: Cross multiply
    28,308.15x = 42,469.50 × 10,768.41
  4. Step 4: Simplify right side
    28,308.15x = 457,328,988.50
  5. Step 5: Solve for x
    x = 457,328,988.50/28,308.15
  6. Step 6: Final answer
    x = 16,155.38

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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.