Home / 14,284.81-21,426.40-3,895.75

Finding the Fourth Proportional to 14,284.81, 21,426.40 and 3,895.75

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Solution

The fourth proportional to 14,284.81, 21,426.40 and 3,895.75 is: 5,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.81 : 21,426.40 = 3,895.75 : x
  2. Step 2: Convert to fraction form
    14,284.81/21,426.40 = 3,895.75/x
  3. Step 3: Cross multiply
    14,284.81x = 21,426.40 × 3,895.75
  4. Step 4: Simplify right side
    14,284.81x = 83,471,897.80
  5. Step 5: Solve for x
    x = 83,471,897.80/14,284.81
  6. Step 6: Final answer
    x = 5,843.40

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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.