Home / 27,055.44-37,384.20-20,821.68

Finding the Fourth Proportional to 27,055.44, 37,384.20 and 20,821.68

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Solution

The fourth proportional to 27,055.44, 37,384.20 and 20,821.68 is: 28,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,055.44 : 37,384.20 = 20,821.68 : x
  2. Step 2: Convert to fraction form
    27,055.44/37,384.20 = 20,821.68/x
  3. Step 3: Cross multiply
    27,055.44x = 37,384.20 × 20,821.68
  4. Step 4: Simplify right side
    27,055.44x = 778,401,849.46
  5. Step 5: Solve for x
    x = 778,401,849.46/27,055.44
  6. Step 6: Final answer
    x = 28,770.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.