Home / 20,633.31-28,475.25-11,681.19

Finding the Fourth Proportional to 20,633.31, 28,475.25 and 11,681.19

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Solution

The fourth proportional to 20,633.31, 28,475.25 and 11,681.19 is: 16,120.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.31 : 28,475.25 = 11,681.19 : x
  2. Step 2: Convert to fraction form
    20,633.31/28,475.25 = 11,681.19/x
  3. Step 3: Cross multiply
    20,633.31x = 28,475.25 × 11,681.19
  4. Step 4: Simplify right side
    20,633.31x = 332,624,805.55
  5. Step 5: Solve for x
    x = 332,624,805.55/20,633.31
  6. Step 6: Final answer
    x = 16,120.77

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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.