Home / 42,400.82-63,615.05-21,329.99

Finding the Fourth Proportional to 42,400.82, 63,615.05 and 21,329.99

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Solution

The fourth proportional to 42,400.82, 63,615.05 and 21,329.99 is: 32,001.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,400.82 : 63,615.05 = 21,329.99 : x
  2. Step 2: Convert to fraction form
    42,400.82/63,615.05 = 21,329.99/x
  3. Step 3: Cross multiply
    42,400.82x = 63,615.05 × 21,329.99
  4. Step 4: Simplify right side
    42,400.82x = 1,356,908,380.35
  5. Step 5: Solve for x
    x = 1,356,908,380.35/42,400.82
  6. Step 6: Final answer
    x = 32,001.94

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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.