Home / 18,721.32-28,037.82-14,814.12

Finding the Fourth Proportional to 18,721.32, 28,037.82 and 14,814.12

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Solution

The fourth proportional to 18,721.32, 28,037.82 and 14,814.12 is: 22,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.32 : 28,037.82 = 14,814.12 : x
  2. Step 2: Convert to fraction form
    18,721.32/28,037.82 = 14,814.12/x
  3. Step 3: Cross multiply
    18,721.32x = 28,037.82 × 14,814.12
  4. Step 4: Simplify right side
    18,721.32x = 415,355,630.02
  5. Step 5: Solve for x
    x = 415,355,630.02/18,721.32
  6. Step 6: Final answer
    x = 22,186.24

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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.