Home / 39,315.21-54,257.26-29,607.28

Finding the Fourth Proportional to 39,315.21, 54,257.26 and 29,607.28

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Solution

The fourth proportional to 39,315.21, 54,257.26 and 29,607.28 is: 40,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,315.21 : 54,257.26 = 29,607.28 : x
  2. Step 2: Convert to fraction form
    39,315.21/54,257.26 = 29,607.28/x
  3. Step 3: Cross multiply
    39,315.21x = 54,257.26 × 29,607.28
  4. Step 4: Simplify right side
    39,315.21x = 1,606,409,993.68
  5. Step 5: Solve for x
    x = 1,606,409,993.68/39,315.21
  6. Step 6: Final answer
    x = 40,859.76

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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.