Home / 38,917.64-58,384.66-12,620.34

Finding the Fourth Proportional to 38,917.64, 58,384.66 and 12,620.34

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Solution

The fourth proportional to 38,917.64, 58,384.66 and 12,620.34 is: 18,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,917.64 : 58,384.66 = 12,620.34 : x
  2. Step 2: Convert to fraction form
    38,917.64/58,384.66 = 12,620.34/x
  3. Step 3: Cross multiply
    38,917.64x = 58,384.66 × 12,620.34
  4. Step 4: Simplify right side
    38,917.64x = 736,833,968.06
  5. Step 5: Solve for x
    x = 736,833,968.06/38,917.64
  6. Step 6: Final answer
    x = 18,933.16

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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.