Home / 30,490.60-45,742.90-10,769.34

Finding the Fourth Proportional to 30,490.60, 45,742.90 and 10,769.34

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Solution

The fourth proportional to 30,490.60, 45,742.90 and 10,769.34 is: 16,156.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,490.60 : 45,742.90 = 10,769.34 : x
  2. Step 2: Convert to fraction form
    30,490.60/45,742.90 = 10,769.34/x
  3. Step 3: Cross multiply
    30,490.60x = 45,742.90 × 10,769.34
  4. Step 4: Simplify right side
    30,490.60x = 492,620,842.69
  5. Step 5: Solve for x
    x = 492,620,842.69/30,490.60
  6. Step 6: Final answer
    x = 16,156.48

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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.