Home / 38,300.58-57,447.09-12,005.55

Finding the Fourth Proportional to 38,300.58, 57,447.09 and 12,005.55

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Solution

The fourth proportional to 38,300.58, 57,447.09 and 12,005.55 is: 18,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,300.58 : 57,447.09 = 12,005.55 : x
  2. Step 2: Convert to fraction form
    38,300.58/57,447.09 = 12,005.55/x
  3. Step 3: Cross multiply
    38,300.58x = 57,447.09 × 12,005.55
  4. Step 4: Simplify right side
    38,300.58x = 689,683,911.35
  5. Step 5: Solve for x
    x = 689,683,911.35/38,300.58
  6. Step 6: Final answer
    x = 18,007.14

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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.