Home / 42,520.24-63,789.51-12,940.46

Finding the Fourth Proportional to 42,520.24, 63,789.51 and 12,940.46

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Solution

The fourth proportional to 42,520.24, 63,789.51 and 12,940.46 is: 19,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,520.24 : 63,789.51 = 12,940.46 : x
  2. Step 2: Convert to fraction form
    42,520.24/63,789.51 = 12,940.46/x
  3. Step 3: Cross multiply
    42,520.24x = 63,789.51 × 12,940.46
  4. Step 4: Simplify right side
    42,520.24x = 825,465,283.63
  5. Step 5: Solve for x
    x = 825,465,283.63/42,520.24
  6. Step 6: Final answer
    x = 19,413.47

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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.