Home / 20,711.33-28,583.18-11,637.74

Finding the Fourth Proportional to 20,711.33, 28,583.18 and 11,637.74

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Solution

The fourth proportional to 20,711.33, 28,583.18 and 11,637.74 is: 16,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.33 : 28,583.18 = 11,637.74 : x
  2. Step 2: Convert to fraction form
    20,711.33/28,583.18 = 11,637.74/x
  3. Step 3: Cross multiply
    20,711.33x = 28,583.18 × 11,637.74
  4. Step 4: Simplify right side
    20,711.33x = 332,643,416.11
  5. Step 5: Solve for x
    x = 332,643,416.11/20,711.33
  6. Step 6: Final answer
    x = 16,060.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.