Home / 25,895.74-35,722.11-21,392.86

Finding the Fourth Proportional to 25,895.74, 35,722.11 and 21,392.86

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Solution

The fourth proportional to 25,895.74, 35,722.11 and 21,392.86 is: 29,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,895.74 : 35,722.11 = 21,392.86 : x
  2. Step 2: Convert to fraction form
    25,895.74/35,722.11 = 21,392.86/x
  3. Step 3: Cross multiply
    25,895.74x = 35,722.11 × 21,392.86
  4. Step 4: Simplify right side
    25,895.74x = 764,198,098.13
  5. Step 5: Solve for x
    x = 764,198,098.13/25,895.74
  6. Step 6: Final answer
    x = 29,510.57

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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.