Home / 18,021.99-24,872.46-14,991.76

Finding the Fourth Proportional to 18,021.99, 24,872.46 and 14,991.76

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Solution

The fourth proportional to 18,021.99, 24,872.46 and 14,991.76 is: 20,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.99 : 24,872.46 = 14,991.76 : x
  2. Step 2: Convert to fraction form
    18,021.99/24,872.46 = 14,991.76/x
  3. Step 3: Cross multiply
    18,021.99x = 24,872.46 × 14,991.76
  4. Step 4: Simplify right side
    18,021.99x = 372,881,950.93
  5. Step 5: Solve for x
    x = 372,881,950.93/18,021.99
  6. Step 6: Final answer
    x = 20,690.39

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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.