Home / 25,381.53-35,025.30-13,896.21

Finding the Fourth Proportional to 25,381.53, 35,025.30 and 13,896.21

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Solution

The fourth proportional to 25,381.53, 35,025.30 and 13,896.21 is: 19,176.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.53 : 35,025.30 = 13,896.21 : x
  2. Step 2: Convert to fraction form
    25,381.53/35,025.30 = 13,896.21/x
  3. Step 3: Cross multiply
    25,381.53x = 35,025.30 × 13,896.21
  4. Step 4: Simplify right side
    25,381.53x = 486,718,924.11
  5. Step 5: Solve for x
    x = 486,718,924.11/25,381.53
  6. Step 6: Final answer
    x = 19,176.11

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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.