Home / 28,166.66-38,848.26-19,665.98

Finding the Fourth Proportional to 28,166.66, 38,848.26 and 19,665.98

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Solution

The fourth proportional to 28,166.66, 38,848.26 and 19,665.98 is: 27,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.66 : 38,848.26 = 19,665.98 : x
  2. Step 2: Convert to fraction form
    28,166.66/38,848.26 = 19,665.98/x
  3. Step 3: Cross multiply
    28,166.66x = 38,848.26 × 19,665.98
  4. Step 4: Simplify right side
    28,166.66x = 763,989,104.19
  5. Step 5: Solve for x
    x = 763,989,104.19/28,166.66
  6. Step 6: Final answer
    x = 27,123.88

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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.