Home / 28,203.98-42,306.07-7,144.01

Finding the Fourth Proportional to 28,203.98, 42,306.07 and 7,144.01

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Solution

The fourth proportional to 28,203.98, 42,306.07 and 7,144.01 is: 10,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.98 : 42,306.07 = 7,144.01 : x
  2. Step 2: Convert to fraction form
    28,203.98/42,306.07 = 7,144.01/x
  3. Step 3: Cross multiply
    28,203.98x = 42,306.07 × 7,144.01
  4. Step 4: Simplify right side
    28,203.98x = 302,234,987.14
  5. Step 5: Solve for x
    x = 302,234,987.14/28,203.98
  6. Step 6: Final answer
    x = 10,716.04

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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.