Home / 40,650.93-60,981.48-13,990.05

Finding the Fourth Proportional to 40,650.93, 60,981.48 and 13,990.05

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Solution

The fourth proportional to 40,650.93, 60,981.48 and 13,990.05 is: 20,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,650.93 : 60,981.48 = 13,990.05 : x
  2. Step 2: Convert to fraction form
    40,650.93/60,981.48 = 13,990.05/x
  3. Step 3: Cross multiply
    40,650.93x = 60,981.48 × 13,990.05
  4. Step 4: Simplify right side
    40,650.93x = 853,133,954.27
  5. Step 5: Solve for x
    x = 853,133,954.27/40,650.93
  6. Step 6: Final answer
    x = 20,986.83

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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.