Home / 42,447.05-63,573.50-20,276.00

Finding the Fourth Proportional to 42,447.05, 63,573.50 and 20,276.00

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Solution

The fourth proportional to 42,447.05, 63,573.50 and 20,276.00 is: 30,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,447.05 : 63,573.50 = 20,276.00 : x
  2. Step 2: Convert to fraction form
    42,447.05/63,573.50 = 20,276.00/x
  3. Step 3: Cross multiply
    42,447.05x = 63,573.50 × 20,276.00
  4. Step 4: Simplify right side
    42,447.05x = 1,289,016,257.22
  5. Step 5: Solve for x
    x = 1,289,016,257.22/42,447.05
  6. Step 6: Final answer
    x = 30,367.63

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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.