Home / 42,268.76-63,415.49-18,889.73

Finding the Fourth Proportional to 42,268.76, 63,415.49 and 18,889.73

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Solution

The fourth proportional to 42,268.76, 63,415.49 and 18,889.73 is: 28,340.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,268.76 : 63,415.49 = 18,889.73 : x
  2. Step 2: Convert to fraction form
    42,268.76/63,415.49 = 18,889.73/x
  3. Step 3: Cross multiply
    42,268.76x = 63,415.49 × 18,889.73
  4. Step 4: Simplify right side
    42,268.76x = 1,197,901,072.39
  5. Step 5: Solve for x
    x = 1,197,901,072.39/42,268.76
  6. Step 6: Final answer
    x = 28,340.11

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1.5x scale

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.