Home / 31,189.28-46,786.29-10,412.78

Finding the Fourth Proportional to 31,189.28, 46,786.29 and 10,412.78

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Solution

The fourth proportional to 31,189.28, 46,786.29 and 10,412.78 is: 15,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.28 : 46,786.29 = 10,412.78 : x
  2. Step 2: Convert to fraction form
    31,189.28/46,786.29 = 10,412.78/x
  3. Step 3: Cross multiply
    31,189.28x = 46,786.29 × 10,412.78
  4. Step 4: Simplify right side
    31,189.28x = 487,175,344.79
  5. Step 5: Solve for x
    x = 487,175,344.79/31,189.28
  6. Step 6: Final answer
    x = 15,619.96

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1.5x scale

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.