Home / 28,372.88-42,555.48-11,730.60

Finding the Fourth Proportional to 28,372.88, 42,555.48 and 11,730.60

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Solution

The fourth proportional to 28,372.88, 42,555.48 and 11,730.60 is: 17,594.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.88 : 42,555.48 = 11,730.60 : x
  2. Step 2: Convert to fraction form
    28,372.88/42,555.48 = 11,730.60/x
  3. Step 3: Cross multiply
    28,372.88x = 42,555.48 × 11,730.60
  4. Step 4: Simplify right side
    28,372.88x = 499,201,313.69
  5. Step 5: Solve for x
    x = 499,201,313.69/28,372.88
  6. Step 6: Final answer
    x = 17,594.32

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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.