Home / 28,282.68-39,027.60-15,533.76

Finding the Fourth Proportional to 28,282.68, 39,027.60 and 15,533.76

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Solution

The fourth proportional to 28,282.68, 39,027.60 and 15,533.76 is: 21,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.68 : 39,027.60 = 15,533.76 : x
  2. Step 2: Convert to fraction form
    28,282.68/39,027.60 = 15,533.76/x
  3. Step 3: Cross multiply
    28,282.68x = 39,027.60 × 15,533.76
  4. Step 4: Simplify right side
    28,282.68x = 606,245,371.78
  5. Step 5: Solve for x
    x = 606,245,371.78/28,282.68
  6. Step 6: Final answer
    x = 21,435.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.