Home / 19,905.20-29,856.08-6,757.28

Finding the Fourth Proportional to 19,905.20, 29,856.08 and 6,757.28

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Solution

The fourth proportional to 19,905.20, 29,856.08 and 6,757.28 is: 10,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.20 : 29,856.08 = 6,757.28 : x
  2. Step 2: Convert to fraction form
    19,905.20/29,856.08 = 6,757.28/x
  3. Step 3: Cross multiply
    19,905.20x = 29,856.08 × 6,757.28
  4. Step 4: Simplify right side
    19,905.20x = 201,745,892.26
  5. Step 5: Solve for x
    x = 201,745,892.26/19,905.20
  6. Step 6: Final answer
    x = 10,135.34

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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.