Home / 20,658.98-28,499.36-12,269.54

Finding the Fourth Proportional to 20,658.98, 28,499.36 and 12,269.54

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Solution

The fourth proportional to 20,658.98, 28,499.36 and 12,269.54 is: 16,926.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.98 : 28,499.36 = 12,269.54 : x
  2. Step 2: Convert to fraction form
    20,658.98/28,499.36 = 12,269.54/x
  3. Step 3: Cross multiply
    20,658.98x = 28,499.36 × 12,269.54
  4. Step 4: Simplify right side
    20,658.98x = 349,674,037.49
  5. Step 5: Solve for x
    x = 349,674,037.49/20,658.98
  6. Step 6: Final answer
    x = 16,926.01

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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.