Home / 42,521.24-63,785.10-12,941.60

Finding the Fourth Proportional to 42,521.24, 63,785.10 and 12,941.60

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Solution

The fourth proportional to 42,521.24, 63,785.10 and 12,941.60 is: 19,413.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,521.24 : 63,785.10 = 12,941.60 : x
  2. Step 2: Convert to fraction form
    42,521.24/63,785.10 = 12,941.60/x
  3. Step 3: Cross multiply
    42,521.24x = 63,785.10 × 12,941.60
  4. Step 4: Simplify right side
    42,521.24x = 825,481,250.16
  5. Step 5: Solve for x
    x = 825,481,250.16/42,521.24
  6. Step 6: Final answer
    x = 19,413.39

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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.