Home / 20,637.78-30,960.56-9,393.99

Finding the Fourth Proportional to 20,637.78, 30,960.56 and 9,393.99

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Solution

The fourth proportional to 20,637.78, 30,960.56 and 9,393.99 is: 14,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.78 : 30,960.56 = 9,393.99 : x
  2. Step 2: Convert to fraction form
    20,637.78/30,960.56 = 9,393.99/x
  3. Step 3: Cross multiply
    20,637.78x = 30,960.56 × 9,393.99
  4. Step 4: Simplify right side
    20,637.78x = 290,843,191.03
  5. Step 5: Solve for x
    x = 290,843,191.03/20,637.78
  6. Step 6: Final answer
    x = 14,092.76

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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.