Home / 20,895.34-31,313.52-11,539.56

Finding the Fourth Proportional to 20,895.34, 31,313.52 and 11,539.56

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Solution

The fourth proportional to 20,895.34, 31,313.52 and 11,539.56 is: 17,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,895.34 : 31,313.52 = 11,539.56 : x
  2. Step 2: Convert to fraction form
    20,895.34/31,313.52 = 11,539.56/x
  3. Step 3: Cross multiply
    20,895.34x = 31,313.52 × 11,539.56
  4. Step 4: Simplify right side
    20,895.34x = 361,344,242.85
  5. Step 5: Solve for x
    x = 361,344,242.85/20,895.34
  6. Step 6: Final answer
    x = 17,293.05

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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.