Home / 39,756.96-54,861.84-21,851.52

Finding the Fourth Proportional to 39,756.96, 54,861.84 and 21,851.52

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Solution

The fourth proportional to 39,756.96, 54,861.84 and 21,851.52 is: 30,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.96 : 54,861.84 = 21,851.52 : x
  2. Step 2: Convert to fraction form
    39,756.96/54,861.84 = 21,851.52/x
  3. Step 3: Cross multiply
    39,756.96x = 54,861.84 × 21,851.52
  4. Step 4: Simplify right side
    39,756.96x = 1,198,814,594.00
  5. Step 5: Solve for x
    x = 1,198,814,594.00/39,756.96
  6. Step 6: Final answer
    x = 30,153.58

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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.