Home / 28,480.62-42,724.34-11,851.89

Finding the Fourth Proportional to 28,480.62, 42,724.34 and 11,851.89

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Solution

The fourth proportional to 28,480.62, 42,724.34 and 11,851.89 is: 17,779.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.62 : 42,724.34 = 11,851.89 : x
  2. Step 2: Convert to fraction form
    28,480.62/42,724.34 = 11,851.89/x
  3. Step 3: Cross multiply
    28,480.62x = 42,724.34 × 11,851.89
  4. Step 4: Simplify right side
    28,480.62x = 506,364,178.00
  5. Step 5: Solve for x
    x = 506,364,178.00/28,480.62
  6. Step 6: Final answer
    x = 17,779.25

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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.