Home / 28,820.52-39,777.75-16,245.27

Finding the Fourth Proportional to 28,820.52, 39,777.75 and 16,245.27

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Solution

The fourth proportional to 28,820.52, 39,777.75 and 16,245.27 is: 22,421.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,820.52 : 39,777.75 = 16,245.27 : x
  2. Step 2: Convert to fraction form
    28,820.52/39,777.75 = 16,245.27/x
  3. Step 3: Cross multiply
    28,820.52x = 39,777.75 × 16,245.27
  4. Step 4: Simplify right side
    28,820.52x = 646,200,288.74
  5. Step 5: Solve for x
    x = 646,200,288.74/28,820.52
  6. Step 6: Final answer
    x = 22,421.53

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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.