Home / 19,359.18-29,038.83-5,319.42

Finding the Fourth Proportional to 19,359.18, 29,038.83 and 5,319.42

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Solution

The fourth proportional to 19,359.18, 29,038.83 and 5,319.42 is: 7,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,359.18 : 29,038.83 = 5,319.42 : x
  2. Step 2: Convert to fraction form
    19,359.18/29,038.83 = 5,319.42/x
  3. Step 3: Cross multiply
    19,359.18x = 29,038.83 × 5,319.42
  4. Step 4: Simplify right side
    19,359.18x = 154,469,733.08
  5. Step 5: Solve for x
    x = 154,469,733.08/19,359.18
  6. Step 6: Final answer
    x = 7,979.15

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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.