Home / 45,427.91-68,141.99-13,838.18

Finding the Fourth Proportional to 45,427.91, 68,141.99 and 13,838.18

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Solution

The fourth proportional to 45,427.91, 68,141.99 and 13,838.18 is: 20,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.91 : 68,141.99 = 13,838.18 : x
  2. Step 2: Convert to fraction form
    45,427.91/68,141.99 = 13,838.18/x
  3. Step 3: Cross multiply
    45,427.91x = 68,141.99 × 13,838.18
  4. Step 4: Simplify right side
    45,427.91x = 942,960,817.06
  5. Step 5: Solve for x
    x = 942,960,817.06/45,427.91
  6. Step 6: Final answer
    x = 20,757.30

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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.