Home / 14,160.56-21,255.55-13,842.87

Finding the Fourth Proportional to 14,160.56, 21,255.55 and 13,842.87

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Solution

The fourth proportional to 14,160.56, 21,255.55 and 13,842.87 is: 20,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,160.56 : 21,255.55 = 13,842.87 : x
  2. Step 2: Convert to fraction form
    14,160.56/21,255.55 = 13,842.87/x
  3. Step 3: Cross multiply
    14,160.56x = 21,255.55 × 13,842.87
  4. Step 4: Simplify right side
    14,160.56x = 294,237,701.11
  5. Step 5: Solve for x
    x = 294,237,701.11/14,160.56
  6. Step 6: Final answer
    x = 20,778.68

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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.