Home / 42,836.64-64,264.38-12,849.66

Finding the Fourth Proportional to 42,836.64, 64,264.38 and 12,849.66

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Solution

The fourth proportional to 42,836.64, 64,264.38 and 12,849.66 is: 19,277.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.64 : 64,264.38 = 12,849.66 : x
  2. Step 2: Convert to fraction form
    42,836.64/64,264.38 = 12,849.66/x
  3. Step 3: Cross multiply
    42,836.64x = 64,264.38 × 12,849.66
  4. Step 4: Simplify right side
    42,836.64x = 825,775,433.11
  5. Step 5: Solve for x
    x = 825,775,433.11/42,836.64
  6. Step 6: Final answer
    x = 19,277.32

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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.