Home / 28,127.88-42,144.42-17,000.64

Finding the Fourth Proportional to 28,127.88, 42,144.42 and 17,000.64

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Solution

The fourth proportional to 28,127.88, 42,144.42 and 17,000.64 is: 25,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.88 : 42,144.42 = 17,000.64 : x
  2. Step 2: Convert to fraction form
    28,127.88/42,144.42 = 17,000.64/x
  3. Step 3: Cross multiply
    28,127.88x = 42,144.42 × 17,000.64
  4. Step 4: Simplify right side
    28,127.88x = 716,482,112.43
  5. Step 5: Solve for x
    x = 716,482,112.43/28,127.88
  6. Step 6: Final answer
    x = 25,472.31

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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.