Home / 28,356.06-42,540.24-8,634.10

Finding the Fourth Proportional to 28,356.06, 42,540.24 and 8,634.10

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Solution

The fourth proportional to 28,356.06, 42,540.24 and 8,634.10 is: 12,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.06 : 42,540.24 = 8,634.10 : x
  2. Step 2: Convert to fraction form
    28,356.06/42,540.24 = 8,634.10/x
  3. Step 3: Cross multiply
    28,356.06x = 42,540.24 × 8,634.10
  4. Step 4: Simplify right side
    28,356.06x = 367,296,686.18
  5. Step 5: Solve for x
    x = 367,296,686.18/28,356.06
  6. Step 6: Final answer
    x = 12,953.02

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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.