Home / 20,395.53-28,116.05-14,416.65

Finding the Fourth Proportional to 20,395.53, 28,116.05 and 14,416.65

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Solution

The fourth proportional to 20,395.53, 28,116.05 and 14,416.65 is: 19,873.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.53 : 28,116.05 = 14,416.65 : x
  2. Step 2: Convert to fraction form
    20,395.53/28,116.05 = 14,416.65/x
  3. Step 3: Cross multiply
    20,395.53x = 28,116.05 × 14,416.65
  4. Step 4: Simplify right side
    20,395.53x = 405,339,180.15
  5. Step 5: Solve for x
    x = 405,339,180.15/20,395.53
  6. Step 6: Final answer
    x = 19,873.92

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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.