Home / 20,895.24-31,313.40-11,539.47

Finding the Fourth Proportional to 20,895.24, 31,313.40 and 11,539.47

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Solution

The fourth proportional to 20,895.24, 31,313.40 and 11,539.47 is: 17,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.24 : 31,313.40 = 11,539.47 : x
  2. Step 2: Convert to fraction form
    20,895.24/31,313.40 = 11,539.47/x
  3. Step 3: Cross multiply
    20,895.24x = 31,313.40 × 11,539.47
  4. Step 4: Simplify right side
    20,895.24x = 361,340,039.90
  5. Step 5: Solve for x
    x = 361,340,039.90/20,895.24
  6. Step 6: Final answer
    x = 17,292.94

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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.