Home / 28,311.79-42,467.56-7,251.79

Finding the Fourth Proportional to 28,311.79, 42,467.56 and 7,251.79

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Solution

The fourth proportional to 28,311.79, 42,467.56 and 7,251.79 is: 10,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,311.79 : 42,467.56 = 7,251.79 : x
  2. Step 2: Convert to fraction form
    28,311.79/42,467.56 = 7,251.79/x
  3. Step 3: Cross multiply
    28,311.79x = 42,467.56 × 7,251.79
  4. Step 4: Simplify right side
    28,311.79x = 307,965,782.26
  5. Step 5: Solve for x
    x = 307,965,782.26/28,311.79
  6. Step 6: Final answer
    x = 10,877.65

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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.