Home / 20,653.56-30,948.81-15,362.99

Finding the Fourth Proportional to 20,653.56, 30,948.81 and 15,362.99

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Solution

The fourth proportional to 20,653.56, 30,948.81 and 15,362.99 is: 23,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.56 : 30,948.81 = 15,362.99 : x
  2. Step 2: Convert to fraction form
    20,653.56/30,948.81 = 15,362.99/x
  3. Step 3: Cross multiply
    20,653.56x = 30,948.81 × 15,362.99
  4. Step 4: Simplify right side
    20,653.56x = 475,466,103.80
  5. Step 5: Solve for x
    x = 475,466,103.80/20,653.56
  6. Step 6: Final answer
    x = 23,021.02

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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.