Home / 28,201.20-42,185.16-25,635.12

Finding the Fourth Proportional to 28,201.20, 42,185.16 and 25,635.12

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Solution

The fourth proportional to 28,201.20, 42,185.16 and 25,635.12 is: 38,346.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201.20 : 42,185.16 = 25,635.12 : x
  2. Step 2: Convert to fraction form
    28,201.20/42,185.16 = 25,635.12/x
  3. Step 3: Cross multiply
    28,201.20x = 42,185.16 × 25,635.12
  4. Step 4: Simplify right side
    28,201.20x = 1,081,421,638.82
  5. Step 5: Solve for x
    x = 1,081,421,638.82/28,201.20
  6. Step 6: Final answer
    x = 38,346.65

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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.