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Finding the Fourth Proportional to 25,742.70, 35,529.03 and 15,134.94

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Solution

The fourth proportional to 25,742.70, 35,529.03 and 15,134.94 is: 20,888.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.70 : 35,529.03 = 15,134.94 : x
  2. Step 2: Convert to fraction form
    25,742.70/35,529.03 = 15,134.94/x
  3. Step 3: Cross multiply
    25,742.70x = 35,529.03 × 15,134.94
  4. Step 4: Simplify right side
    25,742.70x = 537,729,737.31
  5. Step 5: Solve for x
    x = 537,729,737.31/25,742.70
  6. Step 6: Final answer
    x = 20,888.63

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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.