Home / 38,672.82-53,368.37-21,677.10

Finding the Fourth Proportional to 38,672.82, 53,368.37 and 21,677.10

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Solution

The fourth proportional to 38,672.82, 53,368.37 and 21,677.10 is: 29,914.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.82 : 53,368.37 = 21,677.10 : x
  2. Step 2: Convert to fraction form
    38,672.82/53,368.37 = 21,677.10/x
  3. Step 3: Cross multiply
    38,672.82x = 53,368.37 × 21,677.10
  4. Step 4: Simplify right side
    38,672.82x = 1,156,871,384.94
  5. Step 5: Solve for x
    x = 1,156,871,384.94/38,672.82
  6. Step 6: Final answer
    x = 29,914.33

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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.