Home / 28,534.29-42,816.35-11,679.81

Finding the Fourth Proportional to 28,534.29, 42,816.35 and 11,679.81

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Solution

The fourth proportional to 28,534.29, 42,816.35 and 11,679.81 is: 17,525.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,534.29 : 42,816.35 = 11,679.81 : x
  2. Step 2: Convert to fraction form
    28,534.29/42,816.35 = 11,679.81/x
  3. Step 3: Cross multiply
    28,534.29x = 42,816.35 × 11,679.81
  4. Step 4: Simplify right side
    28,534.29x = 500,086,862.09
  5. Step 5: Solve for x
    x = 500,086,862.09/28,534.29
  6. Step 6: Final answer
    x = 17,525.82

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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.