Home / 42,936.96-64,403.52-15,239.04

Finding the Fourth Proportional to 42,936.96, 64,403.52 and 15,239.04

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Solution

The fourth proportional to 42,936.96, 64,403.52 and 15,239.04 is: 22,857.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.96 : 64,403.52 = 15,239.04 : x
  2. Step 2: Convert to fraction form
    42,936.96/64,403.52 = 15,239.04/x
  3. Step 3: Cross multiply
    42,936.96x = 64,403.52 × 15,239.04
  4. Step 4: Simplify right side
    42,936.96x = 981,447,817.42
  5. Step 5: Solve for x
    x = 981,447,817.42/42,936.96
  6. Step 6: Final answer
    x = 22,857.88

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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.