Home / 28,102.60-42,156.30-9,634.60

Finding the Fourth Proportional to 28,102.60, 42,156.30 and 9,634.60

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Solution

The fourth proportional to 28,102.60, 42,156.30 and 9,634.60 is: 14,452.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.60 : 42,156.30 = 9,634.60 : x
  2. Step 2: Convert to fraction form
    28,102.60/42,156.30 = 9,634.60/x
  3. Step 3: Cross multiply
    28,102.60x = 42,156.30 × 9,634.60
  4. Step 4: Simplify right side
    28,102.60x = 406,159,087.98
  5. Step 5: Solve for x
    x = 406,159,087.98/28,102.60
  6. Step 6: Final answer
    x = 14,452.72

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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.