Home / 20,559.76-28,372.26-11,607.07

Finding the Fourth Proportional to 20,559.76, 28,372.26 and 11,607.07

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Solution

The fourth proportional to 20,559.76, 28,372.26 and 11,607.07 is: 16,017.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.76 : 28,372.26 = 11,607.07 : x
  2. Step 2: Convert to fraction form
    20,559.76/28,372.26 = 11,607.07/x
  3. Step 3: Cross multiply
    20,559.76x = 28,372.26 × 11,607.07
  4. Step 4: Simplify right side
    20,559.76x = 329,318,807.88
  5. Step 5: Solve for x
    x = 329,318,807.88/20,559.76
  6. Step 6: Final answer
    x = 16,017.64

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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.