Home / 43,160.05-64,740.21-11,995.30

Finding the Fourth Proportional to 43,160.05, 64,740.21 and 11,995.30

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Solution

The fourth proportional to 43,160.05, 64,740.21 and 11,995.30 is: 17,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,160.05 : 64,740.21 = 11,995.30 : x
  2. Step 2: Convert to fraction form
    43,160.05/64,740.21 = 11,995.30/x
  3. Step 3: Cross multiply
    43,160.05x = 64,740.21 × 11,995.30
  4. Step 4: Simplify right side
    43,160.05x = 776,578,241.01
  5. Step 5: Solve for x
    x = 776,578,241.01/43,160.05
  6. Step 6: Final answer
    x = 17,992.99

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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.