Home / 28,160.24-42,250-10,635.12

Finding the Fourth Proportional to 28,160.24, 42,250 and 10,635.12

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Solution

The fourth proportional to 28,160.24, 42,250 and 10,635.12 is: 15,956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,160.24 : 42,250 = 10,635.12 : x
  2. Step 2: Convert to fraction form
    28,160.24/42,250 = 10,635.12/x
  3. Step 3: Cross multiply
    28,160.24x = 42,250 × 10,635.12
  4. Step 4: Simplify right side
    28,160.24x = 449,333,820.00
  5. Step 5: Solve for x
    x = 449,333,820.00/28,160.24
  6. Step 6: Final answer
    x = 15,956.32

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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.