Home / 28,631.28-42,958.96-15,492.72

Finding the Fourth Proportional to 28,631.28, 42,958.96 and 15,492.72

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Solution

The fourth proportional to 28,631.28, 42,958.96 and 15,492.72 is: 23,245.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.28 : 42,958.96 = 15,492.72 : x
  2. Step 2: Convert to fraction form
    28,631.28/42,958.96 = 15,492.72/x
  3. Step 3: Cross multiply
    28,631.28x = 42,958.96 × 15,492.72
  4. Step 4: Simplify right side
    28,631.28x = 665,551,138.77
  5. Step 5: Solve for x
    x = 665,551,138.77/28,631.28
  6. Step 6: Final answer
    x = 23,245.59

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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.