Home / 42,936.40-64,428.96-16,642.96

Finding the Fourth Proportional to 42,936.40, 64,428.96 and 16,642.96

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Solution

The fourth proportional to 42,936.40, 64,428.96 and 16,642.96 is: 24,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.40 : 64,428.96 = 16,642.96 : x
  2. Step 2: Convert to fraction form
    42,936.40/64,428.96 = 16,642.96/x
  3. Step 3: Cross multiply
    42,936.40x = 64,428.96 × 16,642.96
  4. Step 4: Simplify right side
    42,936.40x = 1,072,288,604.12
  5. Step 5: Solve for x
    x = 1,072,288,604.12/42,936.40
  6. Step 6: Final answer
    x = 24,973.88

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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.