Home / 19,538.16-29,304.20-6,390.50

Finding the Fourth Proportional to 19,538.16, 29,304.20 and 6,390.50

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Solution

The fourth proportional to 19,538.16, 29,304.20 and 6,390.50 is: 9,584.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.16 : 29,304.20 = 6,390.50 : x
  2. Step 2: Convert to fraction form
    19,538.16/29,304.20 = 6,390.50/x
  3. Step 3: Cross multiply
    19,538.16x = 29,304.20 × 6,390.50
  4. Step 4: Simplify right side
    19,538.16x = 187,268,490.10
  5. Step 5: Solve for x
    x = 187,268,490.10/19,538.16
  6. Step 6: Final answer
    x = 9,584.76

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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.