Home / 42,936.96-64,395.52-11,774.64

Finding the Fourth Proportional to 42,936.96, 64,395.52 and 11,774.64

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Solution

The fourth proportional to 42,936.96, 64,395.52 and 11,774.64 is: 17,659.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.96 : 64,395.52 = 11,774.64 : x
  2. Step 2: Convert to fraction form
    42,936.96/64,395.52 = 11,774.64/x
  3. Step 3: Cross multiply
    42,936.96x = 64,395.52 × 11,774.64
  4. Step 4: Simplify right side
    42,936.96x = 758,234,065.61
  5. Step 5: Solve for x
    x = 758,234,065.61/42,936.96
  6. Step 6: Final answer
    x = 17,659.24

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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.