Home / 28,622.46-42,936.43-8,895.72

Finding the Fourth Proportional to 28,622.46, 42,936.43 and 8,895.72

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Solution

The fourth proportional to 28,622.46, 42,936.43 and 8,895.72 is: 13,344.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,622.46 : 42,936.43 = 8,895.72 : x
  2. Step 2: Convert to fraction form
    28,622.46/42,936.43 = 8,895.72/x
  3. Step 3: Cross multiply
    28,622.46x = 42,936.43 × 8,895.72
  4. Step 4: Simplify right side
    28,622.46x = 381,950,459.08
  5. Step 5: Solve for x
    x = 381,950,459.08/28,622.46
  6. Step 6: Final answer
    x = 13,344.43

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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.