Home / 19,866.08-29,783.28-12,853.28

Finding the Fourth Proportional to 19,866.08, 29,783.28 and 12,853.28

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Solution

The fourth proportional to 19,866.08, 29,783.28 and 12,853.28 is: 19,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.08 : 29,783.28 = 12,853.28 : x
  2. Step 2: Convert to fraction form
    19,866.08/29,783.28 = 12,853.28/x
  3. Step 3: Cross multiply
    19,866.08x = 29,783.28 × 12,853.28
  4. Step 4: Simplify right side
    19,866.08x = 382,812,837.16
  5. Step 5: Solve for x
    x = 382,812,837.16/19,866.08
  6. Step 6: Final answer
    x = 19,269.67

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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.