Home / 14,155.94-21,231.08-13,453.40

Finding the Fourth Proportional to 14,155.94, 21,231.08 and 13,453.40

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Solution

The fourth proportional to 14,155.94, 21,231.08 and 13,453.40 is: 20,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.94 : 21,231.08 = 13,453.40 : x
  2. Step 2: Convert to fraction form
    14,155.94/21,231.08 = 13,453.40/x
  3. Step 3: Cross multiply
    14,155.94x = 21,231.08 × 13,453.40
  4. Step 4: Simplify right side
    14,155.94x = 285,630,211.67
  5. Step 5: Solve for x
    x = 285,630,211.67/14,155.94
  6. Step 6: Final answer
    x = 20,177.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.