Home / 45,285.21-67,905.96-18,982.89

Finding the Fourth Proportional to 45,285.21, 67,905.96 and 18,982.89

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Solution

The fourth proportional to 45,285.21, 67,905.96 and 18,982.89 is: 28,465.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,285.21 : 67,905.96 = 18,982.89 : x
  2. Step 2: Convert to fraction form
    45,285.21/67,905.96 = 18,982.89/x
  3. Step 3: Cross multiply
    45,285.21x = 67,905.96 × 18,982.89
  4. Step 4: Simplify right side
    45,285.21x = 1,289,051,369.02
  5. Step 5: Solve for x
    x = 1,289,051,369.02/45,285.21
  6. Step 6: Final answer
    x = 28,465.17

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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.