Home / 31,537.28-43,539.84-20,941.44

Finding the Fourth Proportional to 31,537.28, 43,539.84 and 20,941.44

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Solution

The fourth proportional to 31,537.28, 43,539.84 and 20,941.44 is: 28,911.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.28 : 43,539.84 = 20,941.44 : x
  2. Step 2: Convert to fraction form
    31,537.28/43,539.84 = 20,941.44/x
  3. Step 3: Cross multiply
    31,537.28x = 43,539.84 × 20,941.44
  4. Step 4: Simplify right side
    31,537.28x = 911,786,946.97
  5. Step 5: Solve for x
    x = 911,786,946.97/31,537.28
  6. Step 6: Final answer
    x = 28,911.40

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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.