Home / 42,986.70-64,443.30-16,317.75

Finding the Fourth Proportional to 42,986.70, 64,443.30 and 16,317.75

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Solution

The fourth proportional to 42,986.70, 64,443.30 and 16,317.75 is: 24,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,986.70 : 64,443.30 = 16,317.75 : x
  2. Step 2: Convert to fraction form
    42,986.70/64,443.30 = 16,317.75/x
  3. Step 3: Cross multiply
    42,986.70x = 64,443.30 × 16,317.75
  4. Step 4: Simplify right side
    42,986.70x = 1,051,569,839.05
  5. Step 5: Solve for x
    x = 1,051,569,839.05/42,986.70
  6. Step 6: Final answer
    x = 24,462.68

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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.