Home / 38,703.36-58,049.28-12,405.60

Finding the Fourth Proportional to 38,703.36, 58,049.28 and 12,405.60

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Solution

The fourth proportional to 38,703.36, 58,049.28 and 12,405.60 is: 18,606.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,703.36 : 58,049.28 = 12,405.60 : x
  2. Step 2: Convert to fraction form
    38,703.36/58,049.28 = 12,405.60/x
  3. Step 3: Cross multiply
    38,703.36x = 58,049.28 × 12,405.60
  4. Step 4: Simplify right side
    38,703.36x = 720,136,147.97
  5. Step 5: Solve for x
    x = 720,136,147.97/38,703.36
  6. Step 6: Final answer
    x = 18,606.55

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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.