Home / 21,690.24-32,535.36-6,899.19

Finding the Fourth Proportional to 21,690.24, 32,535.36 and 6,899.19

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Solution

The fourth proportional to 21,690.24, 32,535.36 and 6,899.19 is: 10,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690.24 : 32,535.36 = 6,899.19 : x
  2. Step 2: Convert to fraction form
    21,690.24/32,535.36 = 6,899.19/x
  3. Step 3: Cross multiply
    21,690.24x = 32,535.36 × 6,899.19
  4. Step 4: Simplify right side
    21,690.24x = 224,467,630.36
  5. Step 5: Solve for x
    x = 224,467,630.36/21,690.24
  6. Step 6: Final answer
    x = 10,348.79

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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.