Home / 20,742.53-31,118.40-5,950.31

Finding the Fourth Proportional to 20,742.53, 31,118.40 and 5,950.31

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Solution

The fourth proportional to 20,742.53, 31,118.40 and 5,950.31 is: 8,926.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,742.53 : 31,118.40 = 5,950.31 : x
  2. Step 2: Convert to fraction form
    20,742.53/31,118.40 = 5,950.31/x
  3. Step 3: Cross multiply
    20,742.53x = 31,118.40 × 5,950.31
  4. Step 4: Simplify right side
    20,742.53x = 185,164,126.70
  5. Step 5: Solve for x
    x = 185,164,126.70/20,742.53
  6. Step 6: Final answer
    x = 8,926.79

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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.