Home / 28,725.15-39,634.81-16,786.16

Finding the Fourth Proportional to 28,725.15, 39,634.81 and 16,786.16

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Solution

The fourth proportional to 28,725.15, 39,634.81 and 16,786.16 is: 23,161.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,725.15 : 39,634.81 = 16,786.16 : x
  2. Step 2: Convert to fraction form
    28,725.15/39,634.81 = 16,786.16/x
  3. Step 3: Cross multiply
    28,725.15x = 39,634.81 × 16,786.16
  4. Step 4: Simplify right side
    28,725.15x = 665,316,262.23
  5. Step 5: Solve for x
    x = 665,316,262.23/28,725.15
  6. Step 6: Final answer
    x = 23,161.45

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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.