Home / 30,872.58-42,604.29-16,725.43

Finding the Fourth Proportional to 30,872.58, 42,604.29 and 16,725.43

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Solution

The fourth proportional to 30,872.58, 42,604.29 and 16,725.43 is: 23,081.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.58 : 42,604.29 = 16,725.43 : x
  2. Step 2: Convert to fraction form
    30,872.58/42,604.29 = 16,725.43/x
  3. Step 3: Cross multiply
    30,872.58x = 42,604.29 × 16,725.43
  4. Step 4: Simplify right side
    30,872.58x = 712,574,857.07
  5. Step 5: Solve for x
    x = 712,574,857.07/30,872.58
  6. Step 6: Final answer
    x = 23,081.16

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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.