Home / 42,449.00-63,682.70-12,869.10

Finding the Fourth Proportional to 42,449.00, 63,682.70 and 12,869.10

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Solution

The fourth proportional to 42,449.00, 63,682.70 and 12,869.10 is: 19,306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,449.00 : 63,682.70 = 12,869.10 : x
  2. Step 2: Convert to fraction form
    42,449.00/63,682.70 = 12,869.10/x
  3. Step 3: Cross multiply
    42,449.00x = 63,682.70 × 12,869.10
  4. Step 4: Simplify right side
    42,449.00x = 819,538,970.22
  5. Step 5: Solve for x
    x = 819,538,970.22/42,449.00
  6. Step 6: Final answer
    x = 19,306.44

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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.