Home / 28,474.50-42,715.85-8,754.72

Finding the Fourth Proportional to 28,474.50, 42,715.85 and 8,754.72

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Solution

The fourth proportional to 28,474.50, 42,715.85 and 8,754.72 is: 13,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,474.50 : 42,715.85 = 8,754.72 : x
  2. Step 2: Convert to fraction form
    28,474.50/42,715.85 = 8,754.72/x
  3. Step 3: Cross multiply
    28,474.50x = 42,715.85 × 8,754.72
  4. Step 4: Simplify right side
    28,474.50x = 373,965,262.54
  5. Step 5: Solve for x
    x = 373,965,262.54/28,474.50
  6. Step 6: Final answer
    x = 13,133.34

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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.