Home / 31,190.74-43,043.39-17,579

Finding the Fourth Proportional to 31,190.74, 43,043.39 and 17,579

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Solution

The fourth proportional to 31,190.74, 43,043.39 and 17,579 is: 24,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.74 : 43,043.39 = 17,579 : x
  2. Step 2: Convert to fraction form
    31,190.74/43,043.39 = 17,579/x
  3. Step 3: Cross multiply
    31,190.74x = 43,043.39 × 17,579
  4. Step 4: Simplify right side
    31,190.74x = 756,659,752.81
  5. Step 5: Solve for x
    x = 756,659,752.81/31,190.74
  6. Step 6: Final answer
    x = 24,259.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.