Home / 14,081.57-21,039.60-13,590.95

Finding the Fourth Proportional to 14,081.57, 21,039.60 and 13,590.95

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Solution

The fourth proportional to 14,081.57, 21,039.60 and 13,590.95 is: 20,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.57 : 21,039.60 = 13,590.95 : x
  2. Step 2: Convert to fraction form
    14,081.57/21,039.60 = 13,590.95/x
  3. Step 3: Cross multiply
    14,081.57x = 21,039.60 × 13,590.95
  4. Step 4: Simplify right side
    14,081.57x = 285,948,083.67
  5. Step 5: Solve for x
    x = 285,948,083.67/14,081.57
  6. Step 6: Final answer
    x = 20,306.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.