Home / 42,911.70-64,263.66-21,796.21

Finding the Fourth Proportional to 42,911.70, 64,263.66 and 21,796.21

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Solution

The fourth proportional to 42,911.70, 64,263.66 and 21,796.21 is: 32,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,911.70 : 64,263.66 = 21,796.21 : x
  2. Step 2: Convert to fraction form
    42,911.70/64,263.66 = 21,796.21/x
  3. Step 3: Cross multiply
    42,911.70x = 64,263.66 × 21,796.21
  4. Step 4: Simplify right side
    42,911.70x = 1,400,704,228.73
  5. Step 5: Solve for x
    x = 1,400,704,228.73/42,911.70
  6. Step 6: Final answer
    x = 32,641.55

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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.