Home / 20,772.64-31,132.50-14,940.64

Finding the Fourth Proportional to 20,772.64, 31,132.50 and 14,940.64

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Solution

The fourth proportional to 20,772.64, 31,132.50 and 14,940.64 is: 22,391.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.64 : 31,132.50 = 14,940.64 : x
  2. Step 2: Convert to fraction form
    20,772.64/31,132.50 = 14,940.64/x
  3. Step 3: Cross multiply
    20,772.64x = 31,132.50 × 14,940.64
  4. Step 4: Simplify right side
    20,772.64x = 465,139,474.80
  5. Step 5: Solve for x
    x = 465,139,474.80/20,772.64
  6. Step 6: Final answer
    x = 22,391.93

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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.