Home / 20,740.99-31,113.05-5,949.79

Finding the Fourth Proportional to 20,740.99, 31,113.05 and 5,949.79

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Solution

The fourth proportional to 20,740.99, 31,113.05 and 5,949.79 is: 8,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,740.99 : 31,113.05 = 5,949.79 : x
  2. Step 2: Convert to fraction form
    20,740.99/31,113.05 = 5,949.79/x
  3. Step 3: Cross multiply
    20,740.99x = 31,113.05 × 5,949.79
  4. Step 4: Simplify right side
    20,740.99x = 185,116,084.01
  5. Step 5: Solve for x
    x = 185,116,084.01/20,740.99
  6. Step 6: Final answer
    x = 8,925.13

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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.