Home / 21,195.60-31,793.40-14,942.40

Finding the Fourth Proportional to 21,195.60, 31,793.40 and 14,942.40

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Solution

The fourth proportional to 21,195.60, 31,793.40 and 14,942.40 is: 22,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.60 : 31,793.40 = 14,942.40 : x
  2. Step 2: Convert to fraction form
    21,195.60/31,793.40 = 14,942.40/x
  3. Step 3: Cross multiply
    21,195.60x = 31,793.40 × 14,942.40
  4. Step 4: Simplify right side
    21,195.60x = 475,069,700.16
  5. Step 5: Solve for x
    x = 475,069,700.16/21,195.60
  6. Step 6: Final answer
    x = 22,413.60

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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.