Home / 38,784.96-58,185.12-12,487.68

Finding the Fourth Proportional to 38,784.96, 58,185.12 and 12,487.68

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Solution

The fourth proportional to 38,784.96, 58,185.12 and 12,487.68 is: 18,733.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,784.96 : 58,185.12 = 12,487.68 : x
  2. Step 2: Convert to fraction form
    38,784.96/58,185.12 = 12,487.68/x
  3. Step 3: Cross multiply
    38,784.96x = 58,185.12 × 12,487.68
  4. Step 4: Simplify right side
    38,784.96x = 726,597,159.32
  5. Step 5: Solve for x
    x = 726,597,159.32/38,784.96
  6. Step 6: Final answer
    x = 18,733.99

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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.