Home / 19,069.29-28,604.10-7,830.81

Finding the Fourth Proportional to 19,069.29, 28,604.10 and 7,830.81

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Solution

The fourth proportional to 19,069.29, 28,604.10 and 7,830.81 is: 11,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.29 : 28,604.10 = 7,830.81 : x
  2. Step 2: Convert to fraction form
    19,069.29/28,604.10 = 7,830.81/x
  3. Step 3: Cross multiply
    19,069.29x = 28,604.10 × 7,830.81
  4. Step 4: Simplify right side
    19,069.29x = 223,993,301.69
  5. Step 5: Solve for x
    x = 223,993,301.69/19,069.29
  6. Step 6: Final answer
    x = 11,746.28

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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.