Home / 28,192.12-42,292.16-11,554.56

Finding the Fourth Proportional to 28,192.12, 42,292.16 and 11,554.56

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Solution

The fourth proportional to 28,192.12, 42,292.16 and 11,554.56 is: 17,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.12 : 42,292.16 = 11,554.56 : x
  2. Step 2: Convert to fraction form
    28,192.12/42,292.16 = 11,554.56/x
  3. Step 3: Cross multiply
    28,192.12x = 42,292.16 × 11,554.56
  4. Step 4: Simplify right side
    28,192.12x = 488,667,300.25
  5. Step 5: Solve for x
    x = 488,667,300.25/28,192.12
  6. Step 6: Final answer
    x = 17,333.47

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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.