Home / 38,979.28-58,469.64-12,683.92

Finding the Fourth Proportional to 38,979.28, 58,469.64 and 12,683.92

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Solution

The fourth proportional to 38,979.28, 58,469.64 and 12,683.92 is: 19,026.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,979.28 : 58,469.64 = 12,683.92 : x
  2. Step 2: Convert to fraction form
    38,979.28/58,469.64 = 12,683.92/x
  3. Step 3: Cross multiply
    38,979.28x = 58,469.64 × 12,683.92
  4. Step 4: Simplify right side
    38,979.28x = 741,624,236.19
  5. Step 5: Solve for x
    x = 741,624,236.19/38,979.28
  6. Step 6: Final answer
    x = 19,026.11

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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.