Home / 19,840.72-29,761.08-8,745.04

Finding the Fourth Proportional to 19,840.72, 29,761.08 and 8,745.04

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Solution

The fourth proportional to 19,840.72, 29,761.08 and 8,745.04 is: 13,117.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.72 : 29,761.08 = 8,745.04 : x
  2. Step 2: Convert to fraction form
    19,840.72/29,761.08 = 8,745.04/x
  3. Step 3: Cross multiply
    19,840.72x = 29,761.08 × 8,745.04
  4. Step 4: Simplify right side
    19,840.72x = 260,261,835.04
  5. Step 5: Solve for x
    x = 260,261,835.04/19,840.72
  6. Step 6: Final answer
    x = 13,117.56

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1.5x scale

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.