Home / 36,978.84-51,029.66-21,065.56

Finding the Fourth Proportional to 36,978.84, 51,029.66 and 21,065.56

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Solution

The fourth proportional to 36,978.84, 51,029.66 and 21,065.56 is: 29,069.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,978.84 : 51,029.66 = 21,065.56 : x
  2. Step 2: Convert to fraction form
    36,978.84/51,029.66 = 21,065.56/x
  3. Step 3: Cross multiply
    36,978.84x = 51,029.66 × 21,065.56
  4. Step 4: Simplify right side
    36,978.84x = 1,074,968,364.51
  5. Step 5: Solve for x
    x = 1,074,968,364.51/36,978.84
  6. Step 6: Final answer
    x = 29,069.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.