Home / 38,958.49-58,416.93-20,219.65

Finding the Fourth Proportional to 38,958.49, 58,416.93 and 20,219.65

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Solution

The fourth proportional to 38,958.49, 58,416.93 and 20,219.65 is: 30,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,958.49 : 58,416.93 = 20,219.65 : x
  2. Step 2: Convert to fraction form
    38,958.49/58,416.93 = 20,219.65/x
  3. Step 3: Cross multiply
    38,958.49x = 58,416.93 × 20,219.65
  4. Step 4: Simplify right side
    38,958.49x = 1,181,169,878.67
  5. Step 5: Solve for x
    x = 1,181,169,878.67/38,958.49
  6. Step 6: Final answer
    x = 30,318.68

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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.