Home / 19,213.12-28,816.43-5,358.88

Finding the Fourth Proportional to 19,213.12, 28,816.43 and 5,358.88

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Solution

The fourth proportional to 19,213.12, 28,816.43 and 5,358.88 is: 8,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.12 : 28,816.43 = 5,358.88 : x
  2. Step 2: Convert to fraction form
    19,213.12/28,816.43 = 5,358.88/x
  3. Step 3: Cross multiply
    19,213.12x = 28,816.43 × 5,358.88
  4. Step 4: Simplify right side
    19,213.12x = 154,423,790.40
  5. Step 5: Solve for x
    x = 154,423,790.40/19,213.12
  6. Step 6: Final answer
    x = 8,037.41

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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.