Home / 28,372.40-42,561.52-10,856.96

Finding the Fourth Proportional to 28,372.40, 42,561.52 and 10,856.96

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Solution

The fourth proportional to 28,372.40, 42,561.52 and 10,856.96 is: 16,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.40 : 42,561.52 = 10,856.96 : x
  2. Step 2: Convert to fraction form
    28,372.40/42,561.52 = 10,856.96/x
  3. Step 3: Cross multiply
    28,372.40x = 42,561.52 × 10,856.96
  4. Step 4: Simplify right side
    28,372.40x = 462,088,720.18
  5. Step 5: Solve for x
    x = 462,088,720.18/28,372.40
  6. Step 6: Final answer
    x = 16,286.56

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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.