Home / 27,321.71-37,683.83-20,607.62

Finding the Fourth Proportional to 27,321.71, 37,683.83 and 20,607.62

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Solution

The fourth proportional to 27,321.71, 37,683.83 and 20,607.62 is: 28,423.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.71 : 37,683.83 = 20,607.62 : x
  2. Step 2: Convert to fraction form
    27,321.71/37,683.83 = 20,607.62/x
  3. Step 3: Cross multiply
    27,321.71x = 37,683.83 × 20,607.62
  4. Step 4: Simplify right side
    27,321.71x = 776,573,911.88
  5. Step 5: Solve for x
    x = 776,573,911.88/27,321.71
  6. Step 6: Final answer
    x = 28,423.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.