Home / 29,257.12-40,378.26-28,338.58

Finding the Fourth Proportional to 29,257.12, 40,378.26 and 28,338.58

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Solution

The fourth proportional to 29,257.12, 40,378.26 and 28,338.58 is: 39,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,257.12 : 40,378.26 = 28,338.58 : x
  2. Step 2: Convert to fraction form
    29,257.12/40,378.26 = 28,338.58/x
  3. Step 3: Cross multiply
    29,257.12x = 40,378.26 × 28,338.58
  4. Step 4: Simplify right side
    29,257.12x = 1,144,262,551.27
  5. Step 5: Solve for x
    x = 1,144,262,551.27/29,257.12
  6. Step 6: Final answer
    x = 39,110.57

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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.