Home / 30,580.19-45,889.77-13,941.88

Finding the Fourth Proportional to 30,580.19, 45,889.77 and 13,941.88

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Solution

The fourth proportional to 30,580.19, 45,889.77 and 13,941.88 is: 20,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,580.19 : 45,889.77 = 13,941.88 : x
  2. Step 2: Convert to fraction form
    30,580.19/45,889.77 = 13,941.88/x
  3. Step 3: Cross multiply
    30,580.19x = 45,889.77 × 13,941.88
  4. Step 4: Simplify right side
    30,580.19x = 639,789,604.13
  5. Step 5: Solve for x
    x = 639,789,604.13/30,580.19
  6. Step 6: Final answer
    x = 20,921.70

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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.