Home / 13,931.94-20,901.15-4,071.36

Finding the Fourth Proportional to 13,931.94, 20,901.15 and 4,071.36

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Solution

The fourth proportional to 13,931.94, 20,901.15 and 4,071.36 is: 6,107.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.94 : 20,901.15 = 4,071.36 : x
  2. Step 2: Convert to fraction form
    13,931.94/20,901.15 = 4,071.36/x
  3. Step 3: Cross multiply
    13,931.94x = 20,901.15 × 4,071.36
  4. Step 4: Simplify right side
    13,931.94x = 85,096,106.06
  5. Step 5: Solve for x
    x = 85,096,106.06/13,931.94
  6. Step 6: Final answer
    x = 6,107.99

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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.