Home / 28,756.86-39,682.94-16,182.42

Finding the Fourth Proportional to 28,756.86, 39,682.94 and 16,182.42

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Solution

The fourth proportional to 28,756.86, 39,682.94 and 16,182.42 is: 22,330.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.86 : 39,682.94 = 16,182.42 : x
  2. Step 2: Convert to fraction form
    28,756.86/39,682.94 = 16,182.42/x
  3. Step 3: Cross multiply
    28,756.86x = 39,682.94 × 16,182.42
  4. Step 4: Simplify right side
    28,756.86x = 642,166,001.91
  5. Step 5: Solve for x
    x = 642,166,001.91/28,756.86
  6. Step 6: Final answer
    x = 22,330.88

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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.