Home / 16,939.62-23,388.35-12,953.79

Finding the Fourth Proportional to 16,939.62, 23,388.35 and 12,953.79

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Solution

The fourth proportional to 16,939.62, 23,388.35 and 12,953.79 is: 17,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.62 : 23,388.35 = 12,953.79 : x
  2. Step 2: Convert to fraction form
    16,939.62/23,388.35 = 12,953.79/x
  3. Step 3: Cross multiply
    16,939.62x = 23,388.35 × 12,953.79
  4. Step 4: Simplify right side
    16,939.62x = 302,967,709.58
  5. Step 5: Solve for x
    x = 302,967,709.58/16,939.62
  6. Step 6: Final answer
    x = 17,885.15

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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.