Home / 20,941.62-31,397.22-9,842.64

Finding the Fourth Proportional to 20,941.62, 31,397.22 and 9,842.64

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Solution

The fourth proportional to 20,941.62, 31,397.22 and 9,842.64 is: 14,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.62 : 31,397.22 = 9,842.64 : x
  2. Step 2: Convert to fraction form
    20,941.62/31,397.22 = 9,842.64/x
  3. Step 3: Cross multiply
    20,941.62x = 31,397.22 × 9,842.64
  4. Step 4: Simplify right side
    20,941.62x = 309,031,533.46
  5. Step 5: Solve for x
    x = 309,031,533.46/20,941.62
  6. Step 6: Final answer
    x = 14,756.81

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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.