Home / 28,305.14-42,420.92-11,646.22

Finding the Fourth Proportional to 28,305.14, 42,420.92 and 11,646.22

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Solution

The fourth proportional to 28,305.14, 42,420.92 and 11,646.22 is: 17,454.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.14 : 42,420.92 = 11,646.22 : x
  2. Step 2: Convert to fraction form
    28,305.14/42,420.92 = 11,646.22/x
  3. Step 3: Cross multiply
    28,305.14x = 42,420.92 × 11,646.22
  4. Step 4: Simplify right side
    28,305.14x = 494,043,366.92
  5. Step 5: Solve for x
    x = 494,043,366.92/28,305.14
  6. Step 6: Final answer
    x = 17,454.19

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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.