Home / 20,950.55-31,425.83-6,159.47

Finding the Fourth Proportional to 20,950.55, 31,425.83 and 6,159.47

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Solution

The fourth proportional to 20,950.55, 31,425.83 and 6,159.47 is: 9,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.55 : 31,425.83 = 6,159.47 : x
  2. Step 2: Convert to fraction form
    20,950.55/31,425.83 = 6,159.47/x
  3. Step 3: Cross multiply
    20,950.55x = 31,425.83 × 6,159.47
  4. Step 4: Simplify right side
    20,950.55x = 193,566,457.11
  5. Step 5: Solve for x
    x = 193,566,457.11/20,950.55
  6. Step 6: Final answer
    x = 9,239.21

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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.