Home / 28,286.11-39,030.50-16,347.15

Finding the Fourth Proportional to 28,286.11, 39,030.50 and 16,347.15

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Solution

The fourth proportional to 28,286.11, 39,030.50 and 16,347.15 is: 22,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.11 : 39,030.50 = 16,347.15 : x
  2. Step 2: Convert to fraction form
    28,286.11/39,030.50 = 16,347.15/x
  3. Step 3: Cross multiply
    28,286.11x = 39,030.50 × 16,347.15
  4. Step 4: Simplify right side
    28,286.11x = 638,037,202.05
  5. Step 5: Solve for x
    x = 638,037,202.05/28,286.11
  6. Step 6: Final answer
    x = 22,556.55

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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.