Home / 15,624.48-21,571.84-13,942.99

Finding the Fourth Proportional to 15,624.48, 21,571.84 and 13,942.99

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Solution

The fourth proportional to 15,624.48, 21,571.84 and 13,942.99 is: 19,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.48 : 21,571.84 = 13,942.99 : x
  2. Step 2: Convert to fraction form
    15,624.48/21,571.84 = 13,942.99/x
  3. Step 3: Cross multiply
    15,624.48x = 21,571.84 × 13,942.99
  4. Step 4: Simplify right side
    15,624.48x = 300,775,993.80
  5. Step 5: Solve for x
    x = 300,775,993.80/15,624.48
  6. Step 6: Final answer
    x = 19,250.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.