Home / 42,790.40-64,177.39-16,491.72

Finding the Fourth Proportional to 42,790.40, 64,177.39 and 16,491.72

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Solution

The fourth proportional to 42,790.40, 64,177.39 and 16,491.72 is: 24,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.40 : 64,177.39 = 16,491.72 : x
  2. Step 2: Convert to fraction form
    42,790.40/64,177.39 = 16,491.72/x
  3. Step 3: Cross multiply
    42,790.40x = 64,177.39 × 16,491.72
  4. Step 4: Simplify right side
    42,790.40x = 1,058,395,546.21
  5. Step 5: Solve for x
    x = 1,058,395,546.21/42,790.40
  6. Step 6: Final answer
    x = 24,734.42

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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.