Home / 42,651.87-63,986.99-13,071.75

Finding the Fourth Proportional to 42,651.87, 63,986.99 and 13,071.75

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Solution

The fourth proportional to 42,651.87, 63,986.99 and 13,071.75 is: 19,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,651.87 : 63,986.99 = 13,071.75 : x
  2. Step 2: Convert to fraction form
    42,651.87/63,986.99 = 13,071.75/x
  3. Step 3: Cross multiply
    42,651.87x = 63,986.99 × 13,071.75
  4. Step 4: Simplify right side
    42,651.87x = 836,421,871.17
  5. Step 5: Solve for x
    x = 836,421,871.17/42,651.87
  6. Step 6: Final answer
    x = 19,610.44

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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.