Home / 28,328.73-42,491.26-8,607.45

Finding the Fourth Proportional to 28,328.73, 42,491.26 and 8,607.45

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Solution

The fourth proportional to 28,328.73, 42,491.26 and 8,607.45 is: 12,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.73 : 42,491.26 = 8,607.45 : x
  2. Step 2: Convert to fraction form
    28,328.73/42,491.26 = 8,607.45/x
  3. Step 3: Cross multiply
    28,328.73x = 42,491.26 × 8,607.45
  4. Step 4: Simplify right side
    28,328.73x = 365,741,395.89
  5. Step 5: Solve for x
    x = 365,741,395.89/28,328.73
  6. Step 6: Final answer
    x = 12,910.62

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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.