Home / 21,690.40-32,541.72-6,108.16

Finding the Fourth Proportional to 21,690.40, 32,541.72 and 6,108.16

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Solution

The fourth proportional to 21,690.40, 32,541.72 and 6,108.16 is: 9,163.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.40 : 32,541.72 = 6,108.16 : x
  2. Step 2: Convert to fraction form
    21,690.40/32,541.72 = 6,108.16/x
  3. Step 3: Cross multiply
    21,690.40x = 32,541.72 × 6,108.16
  4. Step 4: Simplify right side
    21,690.40x = 198,770,032.44
  5. Step 5: Solve for x
    x = 198,770,032.44/21,690.40
  6. Step 6: Final answer
    x = 9,163.96

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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.