Home / 20,934.96-31,376.91-11,574.60

Finding the Fourth Proportional to 20,934.96, 31,376.91 and 11,574.60

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Solution

The fourth proportional to 20,934.96, 31,376.91 and 11,574.60 is: 17,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,934.96 : 31,376.91 = 11,574.60 : x
  2. Step 2: Convert to fraction form
    20,934.96/31,376.91 = 11,574.60/x
  3. Step 3: Cross multiply
    20,934.96x = 31,376.91 × 11,574.60
  4. Step 4: Simplify right side
    20,934.96x = 363,175,182.49
  5. Step 5: Solve for x
    x = 363,175,182.49/20,934.96
  6. Step 6: Final answer
    x = 17,347.78

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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.