Home / 28,234.44-42,352.74-9,515.21

Finding the Fourth Proportional to 28,234.44, 42,352.74 and 9,515.21

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Solution

The fourth proportional to 28,234.44, 42,352.74 and 9,515.21 is: 14,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,234.44 : 42,352.74 = 9,515.21 : x
  2. Step 2: Convert to fraction form
    28,234.44/42,352.74 = 9,515.21/x
  3. Step 3: Cross multiply
    28,234.44x = 42,352.74 × 9,515.21
  4. Step 4: Simplify right side
    28,234.44x = 402,995,003.41
  5. Step 5: Solve for x
    x = 402,995,003.41/28,234.44
  6. Step 6: Final answer
    x = 14,273.17

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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.