Home / 28,118.34-42,177.48-11,486.19

Finding the Fourth Proportional to 28,118.34, 42,177.48 and 11,486.19

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Solution

The fourth proportional to 28,118.34, 42,177.48 and 11,486.19 is: 17,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.34 : 42,177.48 = 11,486.19 : x
  2. Step 2: Convert to fraction form
    28,118.34/42,177.48 = 11,486.19/x
  3. Step 3: Cross multiply
    28,118.34x = 42,177.48 × 11,486.19
  4. Step 4: Simplify right side
    28,118.34x = 484,458,549.00
  5. Step 5: Solve for x
    x = 484,458,549.00/28,118.34
  6. Step 6: Final answer
    x = 17,229.27

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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.