Home / 28,182.60-42,273.36-11,319.89

Finding the Fourth Proportional to 28,182.60, 42,273.36 and 11,319.89

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Solution

The fourth proportional to 28,182.60, 42,273.36 and 11,319.89 is: 16,979.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.60 : 42,273.36 = 11,319.89 : x
  2. Step 2: Convert to fraction form
    28,182.60/42,273.36 = 11,319.89/x
  3. Step 3: Cross multiply
    28,182.60x = 42,273.36 × 11,319.89
  4. Step 4: Simplify right side
    28,182.60x = 478,529,573.76
  5. Step 5: Solve for x
    x = 478,529,573.76/28,182.60
  6. Step 6: Final answer
    x = 16,979.61

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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.