Home / 28,711.36-39,616.88-15,964.18

Finding the Fourth Proportional to 28,711.36, 39,616.88 and 15,964.18

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Solution

The fourth proportional to 28,711.36, 39,616.88 and 15,964.18 is: 22,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.36 : 39,616.88 = 15,964.18 : x
  2. Step 2: Convert to fraction form
    28,711.36/39,616.88 = 15,964.18/x
  3. Step 3: Cross multiply
    28,711.36x = 39,616.88 × 15,964.18
  4. Step 4: Simplify right side
    28,711.36x = 632,451,003.36
  5. Step 5: Solve for x
    x = 632,451,003.36/28,711.36
  6. Step 6: Final answer
    x = 22,027.90

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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.