Home / 28,372.38-42,561.48-10,856.94

Finding the Fourth Proportional to 28,372.38, 42,561.48 and 10,856.94

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Solution

The fourth proportional to 28,372.38, 42,561.48 and 10,856.94 is: 16,286.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.38 : 42,561.48 = 10,856.94 : x
  2. Step 2: Convert to fraction form
    28,372.38/42,561.48 = 10,856.94/x
  3. Step 3: Cross multiply
    28,372.38x = 42,561.48 × 10,856.94
  4. Step 4: Simplify right side
    28,372.38x = 462,087,434.67
  5. Step 5: Solve for x
    x = 462,087,434.67/28,372.38
  6. Step 6: Final answer
    x = 16,286.52

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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.