Home / 42,917.30-64,363.64-12,934.44

Finding the Fourth Proportional to 42,917.30, 64,363.64 and 12,934.44

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Solution

The fourth proportional to 42,917.30, 64,363.64 and 12,934.44 is: 19,397.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,917.30 : 64,363.64 = 12,934.44 : x
  2. Step 2: Convert to fraction form
    42,917.30/64,363.64 = 12,934.44/x
  3. Step 3: Cross multiply
    42,917.30x = 64,363.64 × 12,934.44
  4. Step 4: Simplify right side
    42,917.30x = 832,507,478.85
  5. Step 5: Solve for x
    x = 832,507,478.85/42,917.30
  6. Step 6: Final answer
    x = 19,397.95

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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.