Home / 20,686.68-31,034.88-5,895.81

Finding the Fourth Proportional to 20,686.68, 31,034.88 and 5,895.81

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Solution

The fourth proportional to 20,686.68, 31,034.88 and 5,895.81 is: 8,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.68 : 31,034.88 = 5,895.81 : x
  2. Step 2: Convert to fraction form
    20,686.68/31,034.88 = 5,895.81/x
  3. Step 3: Cross multiply
    20,686.68x = 31,034.88 × 5,895.81
  4. Step 4: Simplify right side
    20,686.68x = 182,975,755.85
  5. Step 5: Solve for x
    x = 182,975,755.85/20,686.68
  6. Step 6: Final answer
    x = 8,845.10

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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.