Home / 19,539.16-29,305.70-6,391.50

Finding the Fourth Proportional to 19,539.16, 29,305.70 and 6,391.50

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Solution

The fourth proportional to 19,539.16, 29,305.70 and 6,391.50 is: 9,586.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,539.16 : 29,305.70 = 6,391.50 : x
  2. Step 2: Convert to fraction form
    19,539.16/29,305.70 = 6,391.50/x
  3. Step 3: Cross multiply
    19,539.16x = 29,305.70 × 6,391.50
  4. Step 4: Simplify right side
    19,539.16x = 187,307,381.55
  5. Step 5: Solve for x
    x = 187,307,381.55/19,539.16
  6. Step 6: Final answer
    x = 9,586.26

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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.