Home / 19,505.98-29,235.12-8,389.18

Finding the Fourth Proportional to 19,505.98, 29,235.12 and 8,389.18

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Solution

The fourth proportional to 19,505.98, 29,235.12 and 8,389.18 is: 12,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.98 : 29,235.12 = 8,389.18 : x
  2. Step 2: Convert to fraction form
    19,505.98/29,235.12 = 8,389.18/x
  3. Step 3: Cross multiply
    19,505.98x = 29,235.12 × 8,389.18
  4. Step 4: Simplify right side
    19,505.98x = 245,258,684.00
  5. Step 5: Solve for x
    x = 245,258,684.00/19,505.98
  6. Step 6: Final answer
    x = 12,573.51

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Double scale
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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.