Home / 28,882.40-39,857.22-16,135.79

Finding the Fourth Proportional to 28,882.40, 39,857.22 and 16,135.79

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Solution

The fourth proportional to 28,882.40, 39,857.22 and 16,135.79 is: 22,267.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,882.40 : 39,857.22 = 16,135.79 : x
  2. Step 2: Convert to fraction form
    28,882.40/39,857.22 = 16,135.79/x
  3. Step 3: Cross multiply
    28,882.40x = 39,857.22 × 16,135.79
  4. Step 4: Simplify right side
    28,882.40x = 643,127,532.62
  5. Step 5: Solve for x
    x = 643,127,532.62/28,882.40
  6. Step 6: Final answer
    x = 22,267.11

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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.