Home / 28,577.52-39,431.88-15,999.84

Finding the Fourth Proportional to 28,577.52, 39,431.88 and 15,999.84

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Solution

The fourth proportional to 28,577.52, 39,431.88 and 15,999.84 is: 22,076.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.52 : 39,431.88 = 15,999.84 : x
  2. Step 2: Convert to fraction form
    28,577.52/39,431.88 = 15,999.84/x
  3. Step 3: Cross multiply
    28,577.52x = 39,431.88 × 15,999.84
  4. Step 4: Simplify right side
    28,577.52x = 630,903,770.90
  5. Step 5: Solve for x
    x = 630,903,770.90/28,577.52
  6. Step 6: Final answer
    x = 22,076.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.