Home / 28,453.52-42,679.20-7,677.56

Finding the Fourth Proportional to 28,453.52, 42,679.20 and 7,677.56

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Solution

The fourth proportional to 28,453.52, 42,679.20 and 7,677.56 is: 11,516.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,453.52 : 42,679.20 = 7,677.56 : x
  2. Step 2: Convert to fraction form
    28,453.52/42,679.20 = 7,677.56/x
  3. Step 3: Cross multiply
    28,453.52x = 42,679.20 × 7,677.56
  4. Step 4: Simplify right side
    28,453.52x = 327,672,118.75
  5. Step 5: Solve for x
    x = 327,672,118.75/28,453.52
  6. Step 6: Final answer
    x = 11,516.05

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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.