Home / 20,952.37-31,428.47-8,472.24

Finding the Fourth Proportional to 20,952.37, 31,428.47 and 8,472.24

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Solution

The fourth proportional to 20,952.37, 31,428.47 and 8,472.24 is: 12,708.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.37 : 31,428.47 = 8,472.24 : x
  2. Step 2: Convert to fraction form
    20,952.37/31,428.47 = 8,472.24/x
  3. Step 3: Cross multiply
    20,952.37x = 31,428.47 × 8,472.24
  4. Step 4: Simplify right side
    20,952.37x = 266,269,619.24
  5. Step 5: Solve for x
    x = 266,269,619.24/20,952.37
  6. Step 6: Final answer
    x = 12,708.33

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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.