Home / 25,406.88-38,133.71-12,935.81

Finding the Fourth Proportional to 25,406.88, 38,133.71 and 12,935.81

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Solution

The fourth proportional to 25,406.88, 38,133.71 and 12,935.81 is: 19,415.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,406.88 : 38,133.71 = 12,935.81 : x
  2. Step 2: Convert to fraction form
    25,406.88/38,133.71 = 12,935.81/x
  3. Step 3: Cross multiply
    25,406.88x = 38,133.71 × 12,935.81
  4. Step 4: Simplify right side
    25,406.88x = 493,290,506.32
  5. Step 5: Solve for x
    x = 493,290,506.32/25,406.88
  6. Step 6: Final answer
    x = 19,415.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.