Home / 21,586.76-29,794.14-13,623.62

Finding the Fourth Proportional to 21,586.76, 29,794.14 and 13,623.62

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Solution

The fourth proportional to 21,586.76, 29,794.14 and 13,623.62 is: 18,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,586.76 : 29,794.14 = 13,623.62 : x
  2. Step 2: Convert to fraction form
    21,586.76/29,794.14 = 13,623.62/x
  3. Step 3: Cross multiply
    21,586.76x = 29,794.14 × 13,623.62
  4. Step 4: Simplify right side
    21,586.76x = 405,904,041.59
  5. Step 5: Solve for x
    x = 405,904,041.59/21,586.76
  6. Step 6: Final answer
    x = 18,803.38

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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.