Home / 31,260.87-43,133.04-18,507.69

Finding the Fourth Proportional to 31,260.87, 43,133.04 and 18,507.69

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Solution

The fourth proportional to 31,260.87, 43,133.04 and 18,507.69 is: 25,536.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.87 : 43,133.04 = 18,507.69 : x
  2. Step 2: Convert to fraction form
    31,260.87/43,133.04 = 18,507.69/x
  3. Step 3: Cross multiply
    31,260.87x = 43,133.04 × 18,507.69
  4. Step 4: Simplify right side
    31,260.87x = 798,292,933.08
  5. Step 5: Solve for x
    x = 798,292,933.08/31,260.87
  6. Step 6: Final answer
    x = 25,536.49

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1.5x scale

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.