Home / 31,249.07-43,123.40-16,908.58

Finding the Fourth Proportional to 31,249.07, 43,123.40 and 16,908.58

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Solution

The fourth proportional to 31,249.07, 43,123.40 and 16,908.58 is: 23,333.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,249.07 : 43,123.40 = 16,908.58 : x
  2. Step 2: Convert to fraction form
    31,249.07/43,123.40 = 16,908.58/x
  3. Step 3: Cross multiply
    31,249.07x = 43,123.40 × 16,908.58
  4. Step 4: Simplify right side
    31,249.07x = 729,155,491.54
  5. Step 5: Solve for x
    x = 729,155,491.54/31,249.07
  6. Step 6: Final answer
    x = 23,333.67

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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.