Home / 19,330.75-28,991.67-10,900.99

Finding the Fourth Proportional to 19,330.75, 28,991.67 and 10,900.99

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Solution

The fourth proportional to 19,330.75, 28,991.67 and 10,900.99 is: 16,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.75 : 28,991.67 = 10,900.99 : x
  2. Step 2: Convert to fraction form
    19,330.75/28,991.67 = 10,900.99/x
  3. Step 3: Cross multiply
    19,330.75x = 28,991.67 × 10,900.99
  4. Step 4: Simplify right side
    19,330.75x = 316,037,904.75
  5. Step 5: Solve for x
    x = 316,037,904.75/19,330.75
  6. Step 6: Final answer
    x = 16,348.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.