Home / 28,628.20-42,863.01-21,586.87

Finding the Fourth Proportional to 28,628.20, 42,863.01 and 21,586.87

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Solution

The fourth proportional to 28,628.20, 42,863.01 and 21,586.87 is: 32,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,628.20 : 42,863.01 = 21,586.87 : x
  2. Step 2: Convert to fraction form
    28,628.20/42,863.01 = 21,586.87/x
  3. Step 3: Cross multiply
    28,628.20x = 42,863.01 × 21,586.87
  4. Step 4: Simplify right side
    28,628.20x = 925,278,224.68
  5. Step 5: Solve for x
    x = 925,278,224.68/28,628.20
  6. Step 6: Final answer
    x = 32,320.52

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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.