Home / 19,936.10-29,905.24-7,459.40

Finding the Fourth Proportional to 19,936.10, 29,905.24 and 7,459.40

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Solution

The fourth proportional to 19,936.10, 29,905.24 and 7,459.40 is: 11,189.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936.10 : 29,905.24 = 7,459.40 : x
  2. Step 2: Convert to fraction form
    19,936.10/29,905.24 = 7,459.40/x
  3. Step 3: Cross multiply
    19,936.10x = 29,905.24 × 7,459.40
  4. Step 4: Simplify right side
    19,936.10x = 223,075,147.26
  5. Step 5: Solve for x
    x = 223,075,147.26/19,936.10
  6. Step 6: Final answer
    x = 11,189.51

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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.