Home / 20,558.60-28,369.49-11,604.35

Finding the Fourth Proportional to 20,558.60, 28,369.49 and 11,604.35

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Solution

The fourth proportional to 20,558.60, 28,369.49 and 11,604.35 is: 16,013.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.60 : 28,369.49 = 11,604.35 : x
  2. Step 2: Convert to fraction form
    20,558.60/28,369.49 = 11,604.35/x
  3. Step 3: Cross multiply
    20,558.60x = 28,369.49 × 11,604.35
  4. Step 4: Simplify right side
    20,558.60x = 329,209,291.41
  5. Step 5: Solve for x
    x = 329,209,291.41/20,558.60
  6. Step 6: Final answer
    x = 16,013.22

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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.