Home / 14,988.74-20,771.89-14,777.33

Finding the Fourth Proportional to 14,988.74, 20,771.89 and 14,777.33

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Solution

The fourth proportional to 14,988.74, 20,771.89 and 14,777.33 is: 20,478.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.74 : 20,771.89 = 14,777.33 : x
  2. Step 2: Convert to fraction form
    14,988.74/20,771.89 = 14,777.33/x
  3. Step 3: Cross multiply
    14,988.74x = 20,771.89 × 14,777.33
  4. Step 4: Simplify right side
    14,988.74x = 306,952,932.45
  5. Step 5: Solve for x
    x = 306,952,932.45/14,988.74
  6. Step 6: Final answer
    x = 20,478.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.