Home / 28,867.89-39,839.75-16,123.56

Finding the Fourth Proportional to 28,867.89, 39,839.75 and 16,123.56

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Solution

The fourth proportional to 28,867.89, 39,839.75 and 16,123.56 is: 22,251.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.89 : 39,839.75 = 16,123.56 : x
  2. Step 2: Convert to fraction form
    28,867.89/39,839.75 = 16,123.56/x
  3. Step 3: Cross multiply
    28,867.89x = 39,839.75 × 16,123.56
  4. Step 4: Simplify right side
    28,867.89x = 642,358,429.96
  5. Step 5: Solve for x
    x = 642,358,429.96/28,867.89
  6. Step 6: Final answer
    x = 22,251.66

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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.