Home / 30,390.56-45,606.20-10,669.16

Finding the Fourth Proportional to 30,390.56, 45,606.20 and 10,669.16

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Solution

The fourth proportional to 30,390.56, 45,606.20 and 10,669.16 is: 16,010.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.56 : 45,606.20 = 10,669.16 : x
  2. Step 2: Convert to fraction form
    30,390.56/45,606.20 = 10,669.16/x
  3. Step 3: Cross multiply
    30,390.56x = 45,606.20 × 10,669.16
  4. Step 4: Simplify right side
    30,390.56x = 486,579,791.45
  5. Step 5: Solve for x
    x = 486,579,791.45/30,390.56
  6. Step 6: Final answer
    x = 16,010.89

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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.