Home / 25,855.88-35,684.98-15,790.16

Finding the Fourth Proportional to 25,855.88, 35,684.98 and 15,790.16

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Solution

The fourth proportional to 25,855.88, 35,684.98 and 15,790.16 is: 21,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,855.88 : 35,684.98 = 15,790.16 : x
  2. Step 2: Convert to fraction form
    25,855.88/35,684.98 = 15,790.16/x
  3. Step 3: Cross multiply
    25,855.88x = 35,684.98 × 15,790.16
  4. Step 4: Simplify right side
    25,855.88x = 563,471,593.53
  5. Step 5: Solve for x
    x = 563,471,593.53/25,855.88
  6. Step 6: Final answer
    x = 21,792.79

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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.