Home / 14,238.30-21,353.75-4,240.71

Finding the Fourth Proportional to 14,238.30, 21,353.75 and 4,240.71

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Solution

The fourth proportional to 14,238.30, 21,353.75 and 4,240.71 is: 6,359.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,238.30 : 21,353.75 = 4,240.71 : x
  2. Step 2: Convert to fraction form
    14,238.30/21,353.75 = 4,240.71/x
  3. Step 3: Cross multiply
    14,238.30x = 21,353.75 × 4,240.71
  4. Step 4: Simplify right side
    14,238.30x = 90,554,954.39
  5. Step 5: Solve for x
    x = 90,554,954.39/14,238.30
  6. Step 6: Final answer
    x = 6,359.96

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1.5x scale

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.