Home / 28,662.12-39,552.98-15,914.91

Finding the Fourth Proportional to 28,662.12, 39,552.98 and 15,914.91

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Solution

The fourth proportional to 28,662.12, 39,552.98 and 15,914.91 is: 21,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.12 : 39,552.98 = 15,914.91 : x
  2. Step 2: Convert to fraction form
    28,662.12/39,552.98 = 15,914.91/x
  3. Step 3: Cross multiply
    28,662.12x = 39,552.98 × 15,914.91
  4. Step 4: Simplify right side
    28,662.12x = 629,482,037.36
  5. Step 5: Solve for x
    x = 629,482,037.36/28,662.12
  6. Step 6: Final answer
    x = 21,962.16

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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.