Home / 36,479.28-54,727.68-12,783.36

Finding the Fourth Proportional to 36,479.28, 54,727.68 and 12,783.36

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Solution

The fourth proportional to 36,479.28, 54,727.68 and 12,783.36 is: 19,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,479.28 : 54,727.68 = 12,783.36 : x
  2. Step 2: Convert to fraction form
    36,479.28/54,727.68 = 12,783.36/x
  3. Step 3: Cross multiply
    36,479.28x = 54,727.68 × 12,783.36
  4. Step 4: Simplify right side
    36,479.28x = 699,603,635.40
  5. Step 5: Solve for x
    x = 699,603,635.40/36,479.28
  6. Step 6: Final answer
    x = 19,178.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.