Home / 28,964.49-39,967.70-16,215.90

Finding the Fourth Proportional to 28,964.49, 39,967.70 and 16,215.90

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Solution

The fourth proportional to 28,964.49, 39,967.70 and 16,215.90 is: 22,376.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.49 : 39,967.70 = 16,215.90 : x
  2. Step 2: Convert to fraction form
    28,964.49/39,967.70 = 16,215.90/x
  3. Step 3: Cross multiply
    28,964.49x = 39,967.70 × 16,215.90
  4. Step 4: Simplify right side
    28,964.49x = 648,112,220.29
  5. Step 5: Solve for x
    x = 648,112,220.29/28,964.49
  6. Step 6: Final answer
    x = 22,376.09

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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.