Home / 28,989.39-43,485.21-9,000.96

Finding the Fourth Proportional to 28,989.39, 43,485.21 and 9,000.96

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Solution

The fourth proportional to 28,989.39, 43,485.21 and 9,000.96 is: 13,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.39 : 43,485.21 = 9,000.96 : x
  2. Step 2: Convert to fraction form
    28,989.39/43,485.21 = 9,000.96/x
  3. Step 3: Cross multiply
    28,989.39x = 43,485.21 × 9,000.96
  4. Step 4: Simplify right side
    28,989.39x = 391,408,635.80
  5. Step 5: Solve for x
    x = 391,408,635.80/28,989.39
  6. Step 6: Final answer
    x = 13,501.79

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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.