Home / 38,778.32-58,178.94-12,482.42

Finding the Fourth Proportional to 38,778.32, 58,178.94 and 12,482.42

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Solution

The fourth proportional to 38,778.32, 58,178.94 and 12,482.42 is: 18,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,778.32 : 58,178.94 = 12,482.42 : x
  2. Step 2: Convert to fraction form
    38,778.32/58,178.94 = 12,482.42/x
  3. Step 3: Cross multiply
    38,778.32x = 58,178.94 × 12,482.42
  4. Step 4: Simplify right side
    38,778.32x = 726,213,964.23
  5. Step 5: Solve for x
    x = 726,213,964.23/38,778.32
  6. Step 6: Final answer
    x = 18,727.32

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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.