Home / 30,056.90-45,091.78-8,998.56

Finding the Fourth Proportional to 30,056.90, 45,091.78 and 8,998.56

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Solution

The fourth proportional to 30,056.90, 45,091.78 and 8,998.56 is: 13,499.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,056.90 : 45,091.78 = 8,998.56 : x
  2. Step 2: Convert to fraction form
    30,056.90/45,091.78 = 8,998.56/x
  3. Step 3: Cross multiply
    30,056.90x = 45,091.78 × 8,998.56
  4. Step 4: Simplify right side
    30,056.90x = 405,761,065.34
  5. Step 5: Solve for x
    x = 405,761,065.34/30,056.90
  6. Step 6: Final answer
    x = 13,499.77

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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.