Home / 14,020.48-19,385.22-13,400.83

Finding the Fourth Proportional to 14,020.48, 19,385.22 and 13,400.83

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Solution

The fourth proportional to 14,020.48, 19,385.22 and 13,400.83 is: 18,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.48 : 19,385.22 = 13,400.83 : x
  2. Step 2: Convert to fraction form
    14,020.48/19,385.22 = 13,400.83/x
  3. Step 3: Cross multiply
    14,020.48x = 19,385.22 × 13,400.83
  4. Step 4: Simplify right side
    14,020.48x = 259,778,037.73
  5. Step 5: Solve for x
    x = 259,778,037.73/14,020.48
  6. Step 6: Final answer
    x = 18,528.47

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Double scale
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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.